Music on Mac : 100028 error and music disappearance

Hello,

I connected my Mac to my Apple Music account for the first time last night.

I got the 100028 error and didn't pay too much attention to it at the time - only to discover this morning most of my music is gone.

I do not have any backup (my bad, I know, I activated that now) so the Apple Support wasn't able to do anything for me. I was wondering if anyone ever had that problem and found a fix?

I have been gathering these songs in this specific playlist for about 14 years and I am completely devastated...

Thank you for taking a look at my issue.

Kind regards,

Marion

Posted on Oct 12, 2026 10:53 AM

1 reply

sooperfresh

Level 2 (377 points)

Oct 12, 2026 3:17 PM in response to MarionGM33

Check Finder before anything else: in most cases turning on Sync Library removes songs from the library, not the files, so look in your home folder > Music > Music > Media (or iTunes > iTunes Media for an older library). If they're there, File > Import that folder back into Music. The playlist itself lived only in the library, so it won't come back that way, but the songs will. If they turn up somewhere else, Katalog (musickatalog.com) runs alongside the Music app and its Find & Recover Missing Files searches every drive for them by name.