iTunes keeps re-syncing the same 34 songs
Every time i sync any of my Apple devices (iPhone 11, iPhone 7 (both on iOS 15.3, but this has happened on previous versions), iPod classic), the same 34 songs get re-synced to all devices. This is despite nothing having been done to the tracks (changed artwork, etc.).
The same is true of some playlists.
How can i fix this?