GearVR HUD is misplaced

In Gear VR HUD is shifted, please see screenshots for comparison:

  1. Regular mobile, no VR:

  1. Gear VR (screenshot in developer mode):

  1. Gear VR, screenshot using Oculus Utilities:

I’ve added 2 diagonal lines to showcase center of screen and bounds. Here is a blueprint - a part which draws debug cross lines and circles.

This bug makes it impossible to implement Oculus Global Menu as described in official documentation - https://docs.unrealengine.com/latest/INT/Platforms/GearVR/GlobalMenu/index.html

Please advise.