Hi,
I opened a Bug Report on AnswerHub.
If you are affected by the problem please go there and make a comment!
I played a little bit with the “Char BR” -> “Camera Manager” -> “HMD Follow Orientation”
If this is set to True, I can yaw without affecting the orientation of the character (decoupled head/body movement).
If I use the SetControlRotation Command there, it works at first, the Player and the camera switch to the supposed new angle.
=> But as soon as I set “HMD Follow Orientation” back to False, the Camera snaps back to the “old/wrong” angle.