Can't Set The Camera Height Of The Pawn

I create a simple pawn for Gear VR game but I can’t set a correct height for the camera.

*This screen cap is my simple pawn.

The Look (widget component) is a front sight for aim teleport circle that on the ground to auto teleport after focus 3 seconds so
the camera also has a LineTraceByChannel function to check teleport circle.

I try many method in blueprint and also try the different between have player start or no player start but all fail to set the height.

Some method can affect the camera height but the Line Trace function will disappear.

Most of the setting can effective in VR preview screen but the camera will reset to default height in the package game.

Blueprint Function that I try:

  • Set Tracking Origin
  • Set World Location
  • Set Base Eyes Height