Not sure if it is just my Mac, but since updating OS X and iTunes this week it seems that my smart playlists in iTunes are not updating. For example, if I change the rating of a song it remains in a rating playlist, even though the change no longer matches the smart criteria. I noticed that if I edit the smart playlist, then change it back, it then updates. But obviously I can't do this all the time. My son's PC was updated to iTunes 12.3.3 and it does not have this problem, so I don't know if this problem is limited to Macs, or just some quirk with mine due to some weird conflict. Any other Mac users seeing this?