Alpha Channel Apps not showing on tester devices

Hello. I'm having similar issues for a few weeks now and it's very problematic as we often use this function to work.

Before I would send invitations via the Oculus dev Dashboard to the meta accounts. They would accept the invitation and find our App directly ready to be installed on their headset.

Then few months ago, in many cases the headset wouldn't offer to download and install directly anymore. Need to go through the App store and search for the EXACT app name to be able to find it and install it.

And now, since a few weeks, impossible to even find the shared app through the store. Sometimes waiting for a few days or trying multiple times to cancel invite + resent + accept again would work. Sometimes nothing helps and the headset simply never sees the wanted app. If so, we need to go through unlocking dev mode and installing via the APK which is overly complicated.