Hitting check when removing HISM instances with Custom Instance Data

Hitting check(UploadInfo.InstanceCustomDataCount * InstanceCount == UploadInfo.InstanceCustomData.Num()) and also seeing incorrect isntance order after removing instances from HISMs.

Additionally crash will occur when removing all instances through HierarchicalInstanceStaticMeshComponent::RemoveInstance().

Create an actor, add an HISMC to it

Set the HISMC to have NumCustomDataFloats > 0

Set a mesh on the HISMC

Have the player pawn trace to a location and on click, call HISMC>AddInstance(HitResult.Location)

Set up the right click to call HISMC>RemoveInstance(HitResult.Item)

Place several instances and then delete some.