apk not work from App lab

Hello every one !

I would like to test my Oculus quest application in App lab. Everything is fine except when I download and run the application, a loading time starts endlessly...

I tested my shipping package, it works when I manually install it in my Oculus quest 2. I have to accept the storage authorization manually.

I think the problem is due to the permissions. The unreal function "Request android permissions" does not work, no display. I followed this procedure to run it : https://defconnet.work/en/how-android-save-games-work-ue4-27/

At launch my application should download and install a 360 video.

Anyway with or without permissions I still have the same problem a loading time... 

Can someone help me?

Thanks.