iTunes won't save mp3 tag edits
Full disclosure: stuck on High Sierra and iTunes 12.8.
This was working totally fine yesterday, and now today I can't get iTunes to update song info on existing or newly added songs. It briefly shows the changes in the library window, but they vanish when you look at song info again.
Normally, there is a slight delay while the info is saved. If the same song is playing, it will drop for a split second. The delay is longer if the file is larger. Now there is 0 delay.
I havn't changed any iTunes settings since yesterday.
I tried restarting iTunes, with no change.
I tried restarting my Macbook, with no change.
I have tried converting the tag version, with no change.
I have tried re-importing as .m4a which DOES fix the issue, but only for .m4a. It's not realistic to re-encode my entire library, or every single file I want to edit a tag on or add to my library.
Any help?
MacBook Pro 17″, macOS 10.13