[OCULUS] Unreal Engine not detecting Oculus GO device

hello, i am having a very wired problem!!! my oculus go connect properly. all the instruction i follow by the documentation. but when i lunch my application it is finishing without any error but when i have a look into headset!! its wired it is a single screen!! i cant even look at it with my both eye…please can someone explain what happening? i have oculus rift installed on same pc and rift is showing it well.