[VR] Camera attached to non-root scene component in BP will sink into floor after Reset to Floor Origin

When a project is first created following the Setting up UE4 to work with SteamVR docs, the Vive camera works correctly and will display at the correct height. However, if at any point during development, we run the Reset Orientation and Position node on the Player Pawn, the VR camera will forever be at floor-height.

Reparent the camera component in VR_Pawn to the root component instead of the sub-scene component seems to fix the issue.

1. Use the project setup described here in Setting up UE4 to work with SteamVR
2. Play in VR and notice the camera is at normal height
3. Add the following nodes to the level blueprint
   • [Image Removed]
4. Play again and notice the camera is in the floor
   • Fixing requires restarting UE4
5. Reparent the camera component in VR_Pawn to the root component and play again
   • Notice camera is no longer in the floor