Trouble with UI in unity vr app

I am developing vr app with unity, everything works fine but i am having trouble with menu as i cant see menu in the app after doing some changes to other components and if i again bring new camerarig from working scene it works fine, i am not doing any change in camera rig but i dont know my menu is there as i inspect with remote inspector but could not see ui or menu until i change to new camera rig. 

Please help me with this

Thanks in advance