Deadlock in class FSkinningSceneExtension : public ISceneExtension, public FTickableGameObject

Steps to Reproduce

  1. In a cooked, Windows, Development build (seems to show up more here).
  2. Ensure that FSkinningSceneExtension is enabled and active in your current UWorld.
  3. Create a separate UObject that derives from FTickableGameObject.
  4. Browse to a new map from wthin the tick of your new UObject load a new map.
  5. Observe that the game process locks up entirely.