Are you trying to sync using the Music App? Also, you do know you can arrange your music in the iPhone without the need to sync right? Or are these songs ripped from CD?The error message signals a space issue on the mac's side.
Here's the breakdown anyway:
Not that I know off... it should work regardless.One piece of information that I may have left out is that the iPhone is currently synced with an earlier version of my music library, therefore in my understanding, the latter data has to be deleted in order to sync with the new library.
Indeed puzzling. Perhaps the pending update didn't let you sync.An update from iOS 15.4 -> 15.5 seems to have done the trick, puzzling behavior nonetheless.