When you have an actor with a Hierarchical Instanced Static Mesh component that has a Static Mesh set and is populated with at least 1 instance and then duplicate it or move it to another level, it will cause a crash.
User who reported this mentioned the following about a possible fix:
"It seems internal ClusterTree not been serialized correctly in the actor copy/paste process. One possible fix is to make sure HierarchicalInstancedStaticMeshComponent::BuildTree() been called after actor with HierarchicalInstancedStaticMeshComponent been pasted in to the level."
This did not occur in 4.12.5-3039270+++UE4+Release-4.12
This does occur in 4.13.2-3172292+++UE4+Release-4.13
First reproduction by duplicating:
Reproduction from moving the asset to another level:
First reproduction's callstack:
Second reproduction's callstack:
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