A Pathfinding Issues After Upgrading to Unity 6000.0.40f1

sep · March 12, 2025, 5:56pm

Hello,

I haven’t made many updates to my Project with the A* Pathfinding Project since upgrading to A* Version 5.1.6. The project has been very stable so far, including everything related to A*.

Now, I want to upgrade from Unity 2021.3.26f1 to 6000.0.40f1. As part of that, I also updated the A* package (I deleted the old one and reinstalled it via the Package Manager).

Unfortunately, after running the game for a short while, I now get some exceptions.

IndexOutOfRangeException: System.IndexOutOfRangeException: 
This Exception was thrown from a function compiled with Burst, which has limited exception support.
0x00007fff22cf294e (Unity) burst_abort
0x00007fffb071567e (2d8bb961ca9a259ef4c7321f77e629d) burst_Abort_Trampoline
0x00007fffb06989d5 (2d8bb961ca9a259ef4c7321f77e629d) Pathfinding.Path.Pathfinding.OpenCandidateConnectionBurst_00000506$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007fffb0697e4d (2d8bb961ca9a259ef4c7321f77e629d) Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst(ref Pathfinding.Int3 s1, ref Pathfinding.Int3 s2, ref Pathfinding.Int3 pos, ushort pathID, uint pathNodeIndex, uint candidatePathNodeIndex, uint candidateNodeIndex, uint candidateG, ref Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode> pathNodes, ref Pathfinding.BinaryHeap heap, ref Pathfinding.HeuristicObjective heuristicObjective) -> void_41cdbc907828fffacc4b2a3b74c654f1 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007fffb06970a3 (2d8bb961ca9a259ef4c7321f77e629d) 8b88a049e47d4f464e47806edffa844f
0x00000228314a1cb1 (Mono JIT Code) (wrapper managed-to-native) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:wrapper_native_indirect_0000022BC85E4238 (intptr&,Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000228314a0d1b (Mono JIT Code) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:Invoke (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000228314a0beb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdgeBurst (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x000002283149fadb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdge (Pathfinding.Path,uint,Pathfinding.TriangleMeshNode,int,Pathfinding.Int3,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:504)
0x00000228304bf68b (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,int,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
0x00000228304bf563 (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,int,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:396)
0x00000228314a2203 (Mono JIT Code) Pathfinding.TriangleMeshNode:Open (Pathfinding.Path,uint,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:354)
0x000002283149bed4 (Mono JIT Code) Pathfinding.Path:CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1106)
0x000002283149b460 (Mono JIT Code) Pathfinding.Path:Pathfinding.IPathInternals.CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
0x00000227f8e31e06 (Mono JIT Code) Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:341)
0x00000227f8e318e3 (Mono JIT Code) Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
0x00000227a82a6396 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart_Context (object)
0x00000227a82872de (Mono JIT Code) System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x00000227a8286efb (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x00000227a82a619b (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
0x00000227a82a5f63 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart ()
0x00000226fab12e06 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007fff98bd68de (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007fff98b18404 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3068)
0x00007fff98b1b99a (mono-2.0-bdwgc) mono_runtime_delegate_try_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:4456)
0x00007fff98b4809d (mono-2.0-bdwgc) start_wrapper_internal (at C:/build/output/Unity-Techn
Pathfinding.TriangleMeshNode+OpenSingleEdgeBurst_00000770$BurstDirectCall.Invoke (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdge (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.TriangleMeshNode other, System.Int32 sharedEdgeOnOtherNode, Pathfinding.Int3 pos, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:491)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:396)
Pathfinding.TriangleMeshNode.Open (Pathfinding.Path path, System.UInt32 pathNodeIndex, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:353)
Pathfinding.Path.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1102)
Pathfinding.Path.Pathfinding.IPathInternals.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
Pathfinding.PathProcessor.CalculatePathsThreaded (Pathfinding.PathHandler pathHandler, Pathfinding.Sync.BlockableChannel`1+Receiver[T] receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:339)
UnityEngine.Debug:LogException(Exception)
Pathfinding.PathProcessor:CalculatePathsThreaded(PathHandler, Receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:389)
Pathfinding.<>c__DisplayClass27_0:<StartThreads>b__0() (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart()

At first, I thought this might happen even in the 2021.3.26f1 version when using the newest A* package — but that’s not the case. In that version, I only get a single error, and everything works except for NavmeshCuts.

The NavmeshCut component requires Unity 2022.3 or newer to work, due to Unity bugs in earlier versions. Please update Unity to 2022.3.21 or later, if you want to use navmesh cutting.

So my questions are:

Is this issue caused by the new Unity version?
What can I do to fix it?

Thanks!

tealtxgr · March 13, 2025, 4:16pm

This is with version 5.1.6? You may want to try the most recent version of Astar. Also I’d check that you have the latest version of the Burst package.

sep · March 13, 2025, 6:13pm

I upgraded from version 5.1.6 to the latest version 5.3.3. The Burst package is also up to date at version 1.8.19.

aron_granberg · March 19, 2025, 1:30pm

Hi

Are you doing any non-standard graph updates? Or modifying the graph data in any way?

sep · March 19, 2025, 4:52pm

I do the following after setting up a scene that was mostly procedurally generated beforehand.

        public IEnumerator RebakeNavMesh(Action _callback)
        {

            RecastGraph recastGraph = navMeshSurface.graphs[0] as RecastGraph;

            recastGraph.forcedBoundsCenter = playableAreaCenterPosition;
            recastGraph.forcedBoundsCenter += Vector3.up * FLOATING_POINT_RPECISION_ERROR_AVOIDANCE_VALUE_NAV_MESH_SCAN;
            recastGraph.forcedBoundsSize = playableAreaSize;
            recastGraph.forcedBoundsSize += Vector3.up * NAV_MESH_SCAN_HEIGHT;

            foreach (Progress progress in AstarPath.active.ScanAsync())
            {
#if DEBUGGING
                DebugManager.Output(scriptGroup, this, "Scanning... - " + (progress.progress * 100).ToString("0") + "%");
#endif
                yield return null;
            }

            _callback?.Invoke();
        }

What is suspicious though, as you say, is that I use navmesh cuts quite often. The error often occurs when sending ai near an object that uses navmesh cuts.

Due to the update I was using the legacy cut types (rectangle/circle). I just replaced them. It seems to be a bit better. Unfortunately, the error still occurs.

aron_granberg · March 19, 2025, 4:59pm

Thanks.

Are you able to get any stack traces? So that you can post the exact line that is causing the error?

sep · March 19, 2025, 5:17pm

I am not familiar with burst, so I don’t know if I can somehow increase the logging. Here is an isolated example of the error.

So 3 errors are printed to the console while I am in the editor. Here they are in chronological order.

First:

IndexOutOfRangeException: System.IndexOutOfRangeException: 
This Exception was thrown from a function compiled with Burst, which has limited exception support.
0x00007ffec885294e (Unity) burst_abort
0x00007ffe9267589e (ce4e6bded785fa97580633a607b1267) burst_Abort_Trampoline
0x00007ffe92601415 (ce4e6bded785fa97580633a607b1267) Pathfinding.Path.Pathfinding.OpenCandidateConnectionBurst_00000506$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007ffe9260088d (ce4e6bded785fa97580633a607b1267) Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst(ref Pathfinding.Int3 s1, ref Pathfinding.Int3 s2, ref Pathfinding.Int3 pos, ushort pathID, uint pathNodeIndex, uint candidatePathNodeIndex, uint candidateNodeIndex, uint candidateG, ref Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode> pathNodes, ref Pathfinding.BinaryHeap heap, ref Pathfinding.HeuristicObjective heuristicObjective) -> void_41cdbc907828fffacc4b2a3b74c654f1 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007ffe925ffae3 (ce4e6bded785fa97580633a607b1267) 8b88a049e47d4f464e47806edffa844f
0x000002212780cb51 (Mono JIT Code) (wrapper managed-to-native) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:wrapper_native_indirect_0000021FB39C0290 (intptr&,Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000221278099fb (Mono JIT Code) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:Invoke (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000221278098cb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdgeBurst (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000221278094eb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdge (Pathfinding.Path,uint,Pathfinding.TriangleMeshNode,int,Pathfinding.Int3,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:504)
0x00000221278085bb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,int,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
0x0000022127806ab3 (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:330)
0x00000221278029fb (Mono JIT Code) Pathfinding.Path:CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
0x0000022127802780 (Mono JIT Code) Pathfinding.Path:Pathfinding.IPathInternals.CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
0x0000022128892676 (Mono JIT Code) Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:341)
0x0000022128892153 (Mono JIT Code) Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
0x0000022075446316 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart_Context (object)
0x00000220753a269e (Mono JIT Code) System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x00000220753a22fb (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x00000220754461cb (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
0x0000022075445f93 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart ()
0x0000021fb528a3c6 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007ffe8bd668de (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007ffe8bca8404 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3068)
0x00007ffe8bcab99a (mono-2.0-bdwgc) mono_runtime_delegate_try_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:4456)
0x00007ffe8bcd809d (mono-2.0-bdwgc) start_wrapper_internal (at C:/build/output/Unity-Technologies/mono/mono/metadata/threads.c:1296)
0x00007ffe8bcd825e (mono-2.0-bdwgc) start_wrapper (at C:/build/output/Unity-Technologies/mono/mono/metadata/threads.c:1348)
0x00007fff3
Pathfinding.TriangleMeshNode+OpenSingleEdgeBurst_00000770$BurstDirectCall.Invoke (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdge (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.TriangleMeshNode other, System.Int32 sharedEdgeOnOtherNode, Pathfinding.Int3 pos, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:491)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 point, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:328)
Pathfinding.Path.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
Pathfinding.Path.Pathfinding.IPathInternals.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
Pathfinding.PathProcessor.CalculatePathsThreaded (Pathfinding.PathHandler pathHandler, Pathfinding.Sync.BlockableChannel`1+Receiver[T] receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:339)
UnityEngine.Debug:LogException(Exception)
Pathfinding.PathProcessor:CalculatePathsThreaded(PathHandler, Receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:389)
Pathfinding.<>c__DisplayClass27_0:<StartThreads>b__0() (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart()

Second:

Unhandled exception during pathfinding. Terminating.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:390)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

Third:

Error : This part should never be reached.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:397)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

aron_granberg · March 19, 2025, 5:22pm

If you disable burst, you can get better line numbers.
Alternatively, I think you can enable native debug mode in the burst settings.

sep · March 19, 2025, 5:38pm

Thanks.

Here is the same problem with full logging:

First:

IndexOutOfRangeException: System.IndexOutOfRangeException: 
This Exception was thrown from a function compiled with Burst, which has limited exception support.
0x00007ffe4362294e (Unity) burst_abort
0x00007ffea743589e (ce4e6bded785fa97580633a607b1267) burst_Abort_Trampoline
0x00007ffea73c1415 (ce4e6bded785fa97580633a607b1267) Pathfinding.Path.Pathfinding.OpenCandidateConnectionBurst_00000506$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007ffea73c088d (ce4e6bded785fa97580633a607b1267) Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst(ref Pathfinding.Int3 s1, ref Pathfinding.Int3 s2, ref Pathfinding.Int3 pos, ushort pathID, uint pathNodeIndex, uint candidatePathNodeIndex, uint candidateNodeIndex, uint candidateG, ref Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode> pathNodes, ref Pathfinding.BinaryHeap heap, ref Pathfinding.HeuristicObjective heuristicObjective) -> void_41cdbc907828fffacc4b2a3b74c654f1 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@7a907cf5a459/.Runtime/unknown/unknown:0)
0x00007ffea73bfae3 (ce4e6bded785fa97580633a607b1267) 8b88a049e47d4f464e47806edffa844f
0x00000267aa3a95b1 (Mono JIT Code) (wrapper managed-to-native) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:wrapper_native_indirect_00000267BD91E358 (intptr&,Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000267aa3a725b (Mono JIT Code) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000770$BurstDirectCall:Invoke (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000267aa3a6d1b (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdgeBurst (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x00000267aa3a668b (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenSingleEdge (Pathfinding.Path,uint,Pathfinding.TriangleMeshNode,int,Pathfinding.Int3,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:504)
0x00000267aa3a57fb (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,int,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
0x00000267aa3a3c23 (Mono JIT Code) Pathfinding.TriangleMeshNode:OpenAtPoint (Pathfinding.Path,uint,Pathfinding.Int3,uint) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:330)
0x00000267aa3a025b (Mono JIT Code) Pathfinding.Path:CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
0x00000267aa39ffc0 (Mono JIT Code) Pathfinding.Path:Pathfinding.IPathInternals.CalculateStep (long) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
0x000002672cc6f8a6 (Mono JIT Code) Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:341)
0x000002672cc6f383 (Mono JIT Code) Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
0x0000026665cea036 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart_Context (object)
0x0000026664c759ae (Mono JIT Code) System.Threading.ExecutionContext:RunInternal (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x0000026664c7560b (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object,bool)
0x0000026665ce9e4b (Mono JIT Code) System.Threading.ExecutionContext:Run (System.Threading.ExecutionContext,System.Threading.ContextCallback,object)
0x0000026665ce9cd3 (Mono JIT Code) System.Threading.ThreadHelper:ThreadStart ()
0x0000026662193d86 (Mono JIT Code) (wrapper runtime-invoke) object:runtime_invoke_void__this__ (object,intptr,intptr,intptr)
0x00007ffe942a68de (mono-2.0-bdwgc) mono_jit_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/mini/mini-runtime.c:3445)
0x00007ffe941e8404 (mono-2.0-bdwgc) do_runtime_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:3068)
0x00007ffe941eb99a (mono-2.0-bdwgc) mono_runtime_delegate_try_invoke (at C:/build/output/Unity-Technologies/mono/mono/metadata/object.c:4456)
0x00007ffe9421809d (mono-2.0-bdwgc) start_wrapper_internal (at C:/build/output/Unity-Technologies/mono/mono/metadata/threads.c:1296)
0x00007ffe9421825e (mono-2.0-bdwgc) start_wrapper (at C:/build/output/Unity-Technologies/mono/mono/metadata/threads.c:1348)
0x00007fff3
Pathfinding.TriangleMeshNode+OpenSingleEdgeBurst_00000770$BurstDirectCall.Invoke (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdge (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.TriangleMeshNode other, System.Int32 sharedEdgeOnOtherNode, Pathfinding.Int3 pos, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:491)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 point, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:328)
Pathfinding.Path.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
Pathfinding.Path.Pathfinding.IPathInternals.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
Pathfinding.PathProcessor.CalculatePathsThreaded (Pathfinding.PathHandler pathHandler, Pathfinding.Sync.BlockableChannel`1+Receiver[T] receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:339)
UnityEngine.Debug:LogException(Exception)
Pathfinding.PathProcessor:CalculatePathsThreaded(PathHandler, Receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:389)
Pathfinding.<>c__DisplayClass27_0:<StartThreads>b__0() (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart()

Second:

Unhandled exception during pathfinding. Terminating.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:390)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

Third:

Error : This part should never be reached.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:397)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

aron_granberg · March 19, 2025, 8:58pm

No line numbers, sadly

sep · March 20, 2025, 2:55pm

My bad. Is this better?

First:

IndexOutOfRangeException: Index was outside the bounds of the array.
Pathfinding.Graphs.Util.EuclideanEmbedding.GetHeuristic (Pathfinding.Collections.UnsafeSpan`1[T] costs, System.UInt32 pivotCount, System.UInt32 nodeIndex1, System.UInt32 nodeIndex2) (at ./Packages/com.arongranberg.astar/Graphs/Utilities/EuclideanEmbedding.cs:101)
Pathfinding.HeuristicObjective+Calculate_000004C9$BurstDirectCall.Invoke (Pathfinding.HeuristicObjective& objective, Unity.Mathematics.int3& point, System.UInt32 nodeIndex) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.HeuristicObjective.Calculate (Pathfinding.HeuristicObjective& objective, Unity.Mathematics.int3& point, System.UInt32 nodeIndex) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.HeuristicObjective.Calculate (Unity.Mathematics.int3 point, System.UInt32 nodeIndex) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/HeuristicObjective.cs:58)
Pathfinding.Path+OpenCandidateConnectionBurst_00000506$BurstDirectCall.Invoke (Pathfinding.Path+OpenCandidateParams& pars, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.Path.OpenCandidateConnectionBurst (Pathfinding.Path+OpenCandidateParams& pars, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode+OpenSingleEdgeBurst_00000770$BurstDirectCall.Invoke (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <092913942e604d9c955135027e8e2325>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdge (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.TriangleMeshNode other, System.Int32 sharedEdgeOnOtherNode, Pathfinding.Int3 pos, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:491)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 point, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:328)
Pathfinding.Path.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
Pathfinding.Path.Pathfinding.IPathInternals.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
Pathfinding.PathProcessor.CalculatePathsThreaded (Pathfinding.PathHandler pathHandler, Pathfinding.Sync.BlockableChannel`1+Receiver[T] receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:339)
UnityEngine.Debug:LogException(Exception)
Pathfinding.PathProcessor:CalculatePathsThreaded(PathHandler, Receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:389)
Pathfinding.<>c__DisplayClass27_0:<StartThreads>b__0() (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart()

Second:

Unhandled exception during pathfinding. Terminating.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:390)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

Third:

Error : This part should never be reached.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:397)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

sep · May 7, 2025, 6:07pm

Hi Aron,

It’s been about 2 months since my last update here, and the problem is still unresolved. I just wanted to follow up and check if there’s been any further insight on this issue.

As mentioned earlier, this was a pretty significant update (from Unity 2021.3.26f1 to 6000.0.40f1, plus A* from 5.1.6 to 5.3.3). I also tried upgrading to the very latest Unity 6000.0.48f1 version and A* Star 5.3.7 version today, but unfortunately that didn’t change anything — the same errors still occur.

If it helps with debugging, I’m open to trying a step-by-step upgrade path to isolate where things start breaking.

Also, here’s another try at listing the three errors, and this time I believe the line endings are available?

First:

IndexOutOfRangeException: System.IndexOutOfRangeException: 
This Exception was thrown from a function compiled with Burst, which has limited exception support.
0x00007ffee53ea44e (Unity) burst_abort
0x00007ffe838705f4 (96b8894eb596df4a8f23b0e9395c379) burst_Abort_Trampoline
0x00007ffe8380fa91 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.Collections.UnsafeSpan`1<uint>.get_Item (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Core/Collections/Span.cs:98)
0x00007ffe8380fc13 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.Graphs.Util.EuclideanEmbedding.GetHeuristic (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Graphs/Utilities/EuclideanEmbedding.cs:93)
0x00007ffe8381003b (96b8894eb596df4a8f23b0e9395c379) Pathfinding.HeuristicObjective.Calculate$BurstManaged (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Core/Pathfinding/HeuristicObjective.cs:97)
0x00007ffe8380fc89 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.HeuristicObjective.Pathfinding.Calculate_000004D0$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe8380eb3b (96b8894eb596df4a8f23b0e9395c379) Pathfinding.HeuristicObjective.Calculate(ref Pathfinding.HeuristicObjective objective, ref Unity.Mathematics.int3 point, uint nodeIndex) -> int_75d025b533038ac27c3bb0a4e0aaedf4 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe8381009a (96b8894eb596df4a8f23b0e9395c379) Pathfinding.HeuristicObjective.Calculate (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Core/Pathfinding/HeuristicObjective.cs:58)
0x00007ffe83810341 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.Path.OpenCandidateConnectionBurst$BurstManaged (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:455)
0x00007ffe83810149 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.Path.Pathfinding.OpenCandidateConnectionBurst_0000050D$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe8380eb7b (96b8894eb596df4a8f23b0e9395c379) Pathfinding.Path.OpenCandidateConnectionBurst(ref Pathfinding.Path.OpenCandidateParams pars, ref Pathfinding.BinaryHeap heap, ref Pathfinding.HeuristicObjective heuristicObjective) -> void_75d025b533038ac27c3bb0a4e0aaedf4 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe83810cf9 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst$BurstManaged (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:522)
0x00007ffe8381074c (96b8894eb596df4a8f23b0e9395c379) Pathfinding.TriangleMeshNode.Pathfinding.OpenSingleEdgeBurst_00000777$BurstDirectCall.Invoke (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe8380eca6 (96b8894eb596df4a8f23b0e9395c379) Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst(ref Pathfinding.Int3 s1, ref Pathfinding.Int3 s2, ref Pathfinding.Int3 pos, ushort pathID, uint pathNodeIndex, uint candidatePathNodeIndex, uint candidateNodeIndex, uint candidateG, ref Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode> pathNodes, ref Pathfinding.BinaryHeap heap, ref Pathfinding.HeuristicObjective heuristicObjective) -> void_75d025b533038ac27c3bb0a4e0aaedf4 from AstarPathfindingProject, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null (at C:/Unity/GhoulsOfDivinityUnity6/GODProject/Library/PackageCache/com.unity.burst@59eb6f11d242/.Runtime/unknown/unknown:0)
0x00007ffe8380e76e (96b8894eb596df4a8f23b0e9395c379) 8b88a049e47d4f464e47806edffa844f
0x0000024f61254d01 (Mono JIT Code) (wrapper managed-to-native) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000777$BurstDirectCall:wrapper_native_indirect_0000024E181B4B50 (intptr&,Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,Pathfinding.BinaryHeap&,Pathfinding.HeuristicObjective&)
0x0000024f61252aeb (Mono JIT Code) Pathfinding.TriangleMeshNode/Pathfinding.OpenSingleEdgeBurst_00000777$BurstDirectCall:Invoke (Pathfinding.Int3&,Pathfinding.Int3&,Pathfinding.Int3&,uint16,uint,uint,uint,uint,Pathfinding.Collections.UnsafeSpan`1<Pathfinding.PathNode>&,
Pathfinding.TriangleMeshNode+OpenSingleEdgeBurst_00000777$BurstDirectCall.Invoke (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <cbaa75e8c39e48cab51eb878b076333f>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdgeBurst (Pathfinding.Int3& s1, Pathfinding.Int3& s2, Pathfinding.Int3& pos, System.UInt16 pathID, System.UInt32 pathNodeIndex, System.UInt32 candidatePathNodeIndex, System.UInt32 candidateNodeIndex, System.UInt32 candidateG, Pathfinding.Collections.UnsafeSpan`1[Pathfinding.PathNode]& pathNodes, Pathfinding.BinaryHeap& heap, Pathfinding.HeuristicObjective& heuristicObjective) (at <cbaa75e8c39e48cab51eb878b076333f>:0)
Pathfinding.TriangleMeshNode.OpenSingleEdge (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.TriangleMeshNode other, System.Int32 sharedEdgeOnOtherNode, Pathfinding.Int3 pos, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:491)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 pos, System.Int32 edge, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:416)
Pathfinding.TriangleMeshNode.OpenAtPoint (Pathfinding.Path path, System.UInt32 pathNodeIndex, Pathfinding.Int3 point, System.UInt32 gScore) (at ./Packages/com.arongranberg.astar/Graphs/Nodes/TriangleMeshNode.cs:328)
Pathfinding.Path.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1076)
Pathfinding.Path.Pathfinding.IPathInternals.CalculateStep (System.Int64 targetTick) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/Path.cs:1130)
Pathfinding.PathProcessor.CalculatePathsThreaded (Pathfinding.PathHandler pathHandler, Pathfinding.Sync.BlockableChannel`1+Receiver[T] receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:339)
UnityEngine.Debug:LogException(Exception)
Pathfinding.PathProcessor:CalculatePathsThreaded(PathHandler, Receiver) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:389)
Pathfinding.<>c__DisplayClass27_0:<StartThreads>b__0() (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart()

Second:

Unhandled exception during pathfinding. Terminating.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:390)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

Third:

Error : This part should never be reached.
UnityEngine.Debug:LogError (object)
Pathfinding.PathProcessor:CalculatePathsThreaded (Pathfinding.PathHandler,Pathfinding.Sync.BlockableChannel`1/Receiver<Pathfinding.Path>) (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:397)
Pathfinding.PathProcessor/<>c__DisplayClass27_0:<StartThreads>b__0 () (at ./Packages/com.arongranberg.astar/Core/Pathfinding/PathProcessor.cs:122)
System.Threading.ThreadHelper:ThreadStart ()

One thing to note: I have never actively used Burst myself, so I’m not really sure if there’s something I should configure or disable/enable to make debugging easier. Any advice on that would also be appreciated.

Do you have any new suggestions, or would you recommend any specific next steps?

Thanks again!

Sep