Hi @ItsAMess, welcome to the Sonos Community!
I’m sorry to hear that you’re having issues connecting to your music library on your phone. We’re aware of an issue where the music library option is intermittently missing under "Your Sources" in the Sonos app. We don’t have an ETA on when this will be resolved, but the workarounds are to use either the Desktop app or the Web app.
I hope this information helps, and I’ve tagged this thread as having this issues, so if there are any updates then I’ll let you know here.
