Access Error When Changing ID3 tags on Mac Version

[ohrenkino]

You still have to do it locally.
See this post:

Cannot access file via secure bookmark mp3tag mac

Can you try this command via Terminal.app while Mp3tag being closed: defaults delete app.mp3tag.Mp3tag SecurityScopedBookmarks After that, load the folder (not the individual files) via ⌘O and see if the issue persists. If the issue persists, I’d need more details about the concrete actions you’re performing that trigger the error and ideally a screenshot of the error message.

Please note also the additonal explanation about opening the folder and not just a single file.