I have an album that is behaving badly! It no longer appears in Disk Location, Genre, etc. BUT: if I make a smartlist of all files in the database, it lists it there! I can play the songs from the smartlist, but they appear nowhere else in MC. Importing skips it every time.
I can also use File - Open Media File and play a song from the folder.
I have even tried renaming the songs after removing them from the library (and I made sure to uncheck the 'skip deleted files' box under import). They still won't import.
The only interesting quirk that I see is that in the tags 'complete album' is set to 0 instead of 1. This made me think that the album is just appearing somewhere else in my library instead of with the proper artist, but I have scoured all my other genres, artists, etc. to no avail. Even if tags are messed up, shouldn't it appear under disk location (with no filters set)?