Honestly I have had similar problems with the music app. Go to downloaed music and I can see the songs, go to my music where I loaded from my own cds, and I have over 1000 songs - music becomes unresponsive.
I Disconnected from the network to see if the issue was fetching artwork... still hangs and becomes unresponsive until I exit the app and restart.
this app is broken. It's staggering to me that it made it through Apple testing. That the answer here is wipe your system and start again- are you kidding me?
here is a reason jobs is missed at Apple, too much of a perfectionist to allow this crap out the door.
how does a bug get reported and fixed at Apple? Is there a proper code support process that is not just community chats that tell you to wipe your system and start again?
for a product that has hundreds of millions of existing users - that can not be the answer