After upgrading my iPhone to iOS 9.2 today, the songs in the Apple Music library don't show up as saved offline. Playlists show as offline.
I went to Settings->General->Storage and the Music app is using the same amount of storage as before (i.e. the music's still on the phone). But when I click on 'Music' in Storage, the Settings app freezes and doesn't recover even after minutes.
What are my options?
(I can of course redownload the library, but several gigabytes of my storage is already gone)