Branch: Source
Build version: 4.4.0-0+UE4
Detailed description of issue:
I was moving a blueprint uasset in editor from one folder to another.
In move process multiple levels that referenced that asset were loaded.
One of those classes had blueprint instances that had childactorcomponents.
During destruction of childactorcomponents it renames child actor refernce and destroys its linker loader.
destruction of linkerroot pointer later causes a crash on line 834 UObjectGlobals in StaticLoadClass.
I appeared to resolve crash by passing REN_ForceNoResetLoaders flag to both calls of ChildActor->Rename in ChildActorComponent, but I’m not sure how safe that is.
Repro Steps
Action 1: Have or make a actor blueprint with a childactorcomponent with a pointer to another actor
Action 2: Have or create an instance of blueprint in Action 1 in multiple maps
Action 3: Move blueprint in Action 1 to a different directory.
100% repro