The other thing I’ve done to diagnose it is to create a collection and manually drag everything in that has synced to it, then create a smart collection that shows everything _not_ in the manually created collection (it’s a bit of a PITA).
The other thing I’ve done to diagnose it is to create a collection and manually drag everything in that has synced to it, then create a smart collection that shows everything _not_ in the manually created collection (it’s a bit of a PITA).