Some odd line on the objects?

Hello, I’m creating a simple demo on GearVR, I have started from the regular template from the documentation:
https://docs.unrealengine.com/latest/INT/Platforms/GearVR/HowTo/MotionController/
you can also download example project.

For some reason from my HMD I see some very strange intersecting line around every object in the scene, look like debugging line from collision mesh, I have even removed all kinds of collision meshes around to get rid of this line, but it did not help.
What esle can it be? Does anyone know? I can send you my project file to test it.

This is a screenshot:

(not able to attach for some reason, no option on asnwer hub to upload it here)
Thank you.

For many years I never got any reply from this “Answser Hub”