UI flickering when in VR

Hi,

I am using a second camera for rendering UI elements in VR mode. The UI elements are flickering constantly on Android device. They appear normal on the editor. This is happening only in VR mode. Did any one faced this issue?
I am using Unity 2017.1.

Thank you.

I was able to stop it, after light mapping the scene and disabling the lights. I don’t know how light and this are related but if any one gets similar issue try the above method.