Hi, I’m sorry I can not redo it, I think it was a mistake for exiting/switch window, but I think it was the bug below.
The second smoothSync is not important (the bug works with only one).
The bug spawn when I set SyncAngularVelocity to None.
The crash from a new blank project :
[video]https:///w3lb3[/video]
As you see my pawn dont use an UE generic component for movement, its maybe the cause ? (because the bug dont appear on the ThirdPersonExample)