We're working on an Oculus Go app and haven't figured out yet how to sent it to our test users. The app is not published and we'd like to test on a dozen distributed headsets before publishing. So we uploaded a build to the Alpha channel and added a few users. They accepted the invitations. Everything should have work, but none of them can find the app nor "My Preview Apps" section in Oculus Go "Home".
Seems like we missed something. I tried turning on the Developer Mode, dug into both Oculus Go and Oculus mobile app, w/o any success.
Ive had this happen in the past and it was resolved by adding the accounts in question as developers in your dashboard. This is very much a workaround though so i cant offer a proper solution. Try posting in the developer forums and ping @imperativity if you cant resolve it, he's incredibly helpfull in these situations