> on top of songs disappearing from my playlists It might have been the case that the song didn't disappear, but is instead hidden because it's unavailable. A

> on top of songs disappearing from my playlists It might have been the case that the song didn't disappear, but is instead hidden because it's unavailable. At the bottom of the preferences window there's a section called "display options." In there enable "show unavailable songs in playlists."