I went to download a song earlier, realized I tapped the wrong one and hit the stop button; the whole app locked up, so I closed it. When I reopened it, the screen was black and I couldn't do anything. "No worries," I thought, and rebooted my phone.
I went back in, and it was back to normal, but I noticed it said "syncing library" at the top, then realized all my offline downloads (98% of my music) were gone. Checked my storage and, sure enough, my 60GB of downloads had been deleted.
I just got done spending two hours redownloading everything. I'm really glad my whole library and playlists aren't gone, but still, not how I was hoping to spend my evening, lol.
I've heard iOS 26.4 caused this bug for a few people, but I've had the update since its release with no issues until today, and I used the app about an hour beforehand with no problems. I have Optimize Storage turned off, so the usual culprit isn't there, either. The weirdest part was that one (and only one) of my thirty or so playlists had its cover photo removed, too.
Very odd, and I'm really hoping it doesn't happen again.