Apple Classical very buggy

I subscribed to Apple Classical a while back. I found the app buggy - it wouldn’t play my playlist consistently, when I click on a piece on my playlist, it would play some other piece on the same playlist. I wasn’t happy at all but then I thought it’s a new app. After one month, I cancelled my subscription, thinking to resubscribe later, when all the issues may have been addressed. I used it on my iPhone 11 running ios16. I just resubscribed hoping that the bugs were fixed but to my surprise, the same bugs exists, and now it wouldn’t even play one of my playlists. It does play my other playlists. I’m still using iPhone 11 with the latest ios16 iteration.

I already deleted and reinstalled the app, restarted my phone, but the problems remain.

When I open my Music app, I could play the same playlist that wouldn’t play on the Classical app. This leads me to believe that the Classical app is the problem.