Disappearing components in Level Sequencer Spawnable Camera

I believe this is similar problem to this UDN reported bug.

https://udn.unrealengine.com/questions/438893/view.html

It can be avoided by removing the comments in LevelSeuqnceActorSpawner.cpp

 

1. UEngine::FCopyPropertiesForUnrelatedObjectsParams CopyParams;
2. CopyParams.bPreserveRootComponent = false;
3. CopyParams.bNotifyObjectReplacement = false;
4. SpawnedActor->UnregisterAllComponents();
5. UEngine::CopyPropertiesForUnrelatedObjects(ObjectTemplate, SpawnedActor, CopyParams);
6. SpawnedActor->RegisterAllComponents();

 

Which leads me to believe that it's linked to a core Uobject bug, as talked about by Andrew Rodham in the UDN thread.

 

1. Create a Level Sequencer

1. Add 2 CineCameraActor to the level

1. Open the sequencer editor、 add a track to each CineCameraActor

1. Make both Cine Camera Actor spawnable

1. Add a collision Box to the first camera

1. Change positon of the second camera

1. Save

1. Quit Editor

1. Restart Editor

1. Notice that the collision box has disappeared

To reproduce with attached project [Image Removed]

1. click TestLevelSequence, then click Open Level Sequence

1.  see the attached box in CineCameraActor2

1. chance position CineCameraActor4

1. save and quit

1. relaunch editor

1. see that the box has disappeared from CineCameraActor2 

[Link Removed]