Collections and Music Videos libraries broken

[stargazer]

Decided to try and fix be deleting my Collections and Music Videos libraries, then re-adding. Has not gone well - re-added the Music Videos library, but banner icon  shows no images, and entering the library just gives a spinning wheel as before. Collections are even worse, can't find any way to add the library back again.

Anyone any ideas ?

I'm resisting a clean install, as don't want to lose all my played and progress information.