Null ref on clear preview

#1

All of the sudden this error popped up when entering playmode:

NullReferenceException: Object reference not set to an instance of an object
UnityEditor.GameObjectInspector.ClearPreviewCache () (at <67055f1be3654e2a987254d5437ee5b8>:0)
UnityEditor.GameObjectInspector.ReloadPreviewInstances () (at <67055f1be3654e2a987254d5437ee5b8>:0)
UnityEditor.GameObjectInspector.OnForceReloadInspector () (at <67055f1be3654e2a987254d5437ee5b8>:0)
UnityEditor.AssetDatabase:Refresh()
Pathfinding.Drawing.DrawingData:LoadMaterials(DetectedRenderPipeline) (at Library/PackageCache/com.arongranberg.astar@4.3.34/Drawing/DrawingData.cs:920)
Pathfinding.Drawing.DrawingData:.ctor() (at Library/PackageCache/com.arongranberg.astar@4.3.34/Drawing/DrawingData.cs:938)
Pathfinding.Drawing.DrawingManager:OnEnable() (at Library/PackageCache/com.arongranberg.astar@4.3.34/Drawing/DrawingManager.cs:247)
UnityEngine.GameObject:AddComponent()
Pathfinding.Drawing.DrawingManager:Init() (at Library/PackageCache/com.arongranberg.astar@4.3.34/Drawing/DrawingManager.cs:180)

any idea what might be causing it?

#2

Hello,

I have the same error if anyone has a solution I am taking.

Thanks.