Using a recast graph, reloading my level crashes unity.
Had the same issue before, when I was using NavmeshPrefabs for all chunks in the game.
Here are relevant logs:
Uploading Crash Report
NullReferenceException: Object reference not set to an instance of an object
at Pathfinding.NavmeshBase.DestroyAllNodes () [0x00060] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Graphs\NavmeshBase.cs:282
at Pathfinding.NavGraph.Pathfinding.IGraphInternals.DestroyAllNodes () [0x00000] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Graphs\NavGraph.cs:488
at Pathfinding.AstarData.DestroyAllNodes () [0x0002d] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Core\AstarData.cs:339
at AstarPath.OnDisable () [0x00038] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Core\AstarPath.cs:1365
Uploading Crash Report
NullReferenceException: Object reference not set to an instance of an object
at Pathfinding.NavmeshBase.DestroyAllNodes () [0x00060] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Graphs\NavmeshBase.cs:282
at Pathfinding.NavGraph.Pathfinding.IGraphInternals.DestroyAllNodes () [0x00000] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Graphs\NavGraph.cs:488
at Pathfinding.AstarData.DestroyAllNodes () [0x0002d] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Core\AstarData.cs:339
at AstarPath.OnDisable () [0x00038] in C:\Development\skopje\Assets\Addons\com.arongranberg.astar@5.1.1\Core\AstarPath.cs:1365
(Filename: Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavmeshBase.cs Line: 282)
Header have invalid padding count. Header is corrupted!
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Unity.Collections.Memory/Unmanaged/Array:Resize (void*,long,long,Unity.Collections.AllocatorManager/AllocatorHandle,long,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs:89)
Unity.Collections.Memory/Unmanaged:Free (void*,Unity.Collections.AllocatorManager/AllocatorHandle) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs:27)
Unity.Collections.AllocatorManager:TryLegacy (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:1105)
Unity.Collections.AllocatorManager:Try (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:1129)
Unity.Collections.AllocatorManager/AllocatorHandle:Try (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:613)
Unity.Collections.AllocatorManager:FreeBlock<Unity.Collections.AllocatorManager/AllocatorHandle> (Unity.Collections.AllocatorManager/AllocatorHandle&,Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:143)
Unity.Collections.AllocatorManager:Free<Unity.Collections.AllocatorManager/AllocatorHandle> (Unity.Collections.AllocatorManager/AllocatorHandle&,void*,int,int,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:156)
Unity.Collections.AllocatorManager:Free<Unity.Collections.AllocatorManager/AllocatorHandle, Pathfinding.Int3> (Unity.Collections.AllocatorManager/AllocatorHandle&,Pathfinding.Int3*,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:161)
Unity.Collections.AllocatorManager:Free<Pathfinding.Int3> (Unity.Collections.AllocatorManager/AllocatorHandle,Pathfinding.Int3*,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:225)
Pathfinding.Util.UnsafeSpan`1<Pathfinding.Int3>:Free (Unity.Collections.Allocator) (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/Collections/Span.cs:190)
Pathfinding.Graphs.Navmesh.NavmeshTile:Dispose () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/Navmesh/NavmeshTile.cs:101)
Pathfinding.NavmeshBase:DestroyAllNodes () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavmeshBase.cs:282)
Pathfinding.NavGraph:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavGraph.cs:362)
Pathfinding.NavmeshBase:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavmeshBase.cs:264)
Pathfinding.NavGraph:Pathfinding.IGraphInternals.OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavGraph.cs:486)
Pathfinding.AstarData:ClearGraphsInternal () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarData.cs:313)
Pathfinding.AstarData:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarData.cs:346)
AstarPath:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarPath.cs:1396)
[./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs line 89]
Invalid memory pointer was detected!
UnityEngine.StackTraceUtility:ExtractStackTrace ()
Unity.Collections.Memory/Unmanaged/Array:Resize (void*,long,long,Unity.Collections.AllocatorManager/AllocatorHandle,long,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs:89)
Unity.Collections.Memory/Unmanaged:Free (void*,Unity.Collections.AllocatorManager/AllocatorHandle) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs:27)
Unity.Collections.AllocatorManager:TryLegacy (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:1105)
Unity.Collections.AllocatorManager:Try (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:1129)
Unity.Collections.AllocatorManager/AllocatorHandle:Try (Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:613)
Unity.Collections.AllocatorManager:FreeBlock<Unity.Collections.AllocatorManager/AllocatorHandle> (Unity.Collections.AllocatorManager/AllocatorHandle&,Unity.Collections.AllocatorManager/Block&) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:143)
Unity.Collections.AllocatorManager:Free<Unity.Collections.AllocatorManager/AllocatorHandle> (Unity.Collections.AllocatorManager/AllocatorHandle&,void*,int,int,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:156)
Unity.Collections.AllocatorManager:Free<Unity.Collections.AllocatorManager/AllocatorHandle, Pathfinding.Int3> (Unity.Collections.AllocatorManager/AllocatorHandle&,Pathfinding.Int3*,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:161)
Unity.Collections.AllocatorManager:Free<Pathfinding.Int3> (Unity.Collections.AllocatorManager/AllocatorHandle,Pathfinding.Int3*,int) (at ./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/AllocatorManager.cs:225)
Pathfinding.Util.UnsafeSpan`1<Pathfinding.Int3>:Free (Unity.Collections.Allocator) (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/Collections/Span.cs:190)
Pathfinding.Graphs.Navmesh.NavmeshTile:Dispose () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/Navmesh/NavmeshTile.cs:101)
Pathfinding.NavmeshBase:DestroyAllNodes () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavmeshBase.cs:282)
Pathfinding.NavGraph:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavGraph.cs:362)
Pathfinding.NavmeshBase:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavmeshBase.cs:264)
Pathfinding.NavGraph:Pathfinding.IGraphInternals.OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Graphs/NavGraph.cs:486)
Pathfinding.AstarData:ClearGraphsInternal () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarData.cs:313)
Pathfinding.AstarData:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarData.cs:346)
AstarPath:OnDestroy () (at Assets/Addons/com.arongranberg.astar@5.1.1/Core/AstarPath.cs:1396)
[./Library/PackageCache/com.unity.collections@2.4.1/Unity.Collections/Memory.cs line 89]