On my iPhone 12, when I try to edit my thumbs up playlist and click done, I get a message that says, "There was an error saving the playlist." And the song hasn't deleted. I've tried closing and re-opening the app, but the songs are still there. I've also tried deleting songs from my playlist on my desktop (a Mac laptop). I have some success in deleting songs, but there is a weird glitch happening where I get to a certain place on my playlist, and a few things happen all at once: 1) I no longer have the option to delete songs 2) Most songs are showing up as numerous duplicates 3) The scroll bar keeps changing (as if the playlist is multiplying in loading more and more songs, perhaps creating more duplicates as mentioned in #2) Not sure if my devices are possessed, or if there's a way to clean this up. Thanks in advance.   mod edit: changed title for clarity ... View more