I upgraded to iTunes 12.2.1. All of my music was corrupted (i.e., meta data all screwed up). I used to have iTunes match, but deactivated it a while ago. I followed Apple's directions to restore my music to its original state, but it didn't work. I need help.
The one issue that I see it could be is that I have my iTunes library on an external hard drive. That said, iTunes has that library set as its library in preferences and the hard drive was plugged in when I tried to fix my music.
Any suggestions?