Hey Simon,
can you please try the following:
- Reinstall Mp3tag v2.83c (just to make sure that you have the latest Discogs tag sources without any local changes)
- Login to your Discogs account and revoke access to Mp3tag from https://www.discogs.com/settings/applications
- Use the tag source labelled "Discogs" from within Mp3tag
- Authorize Mp3tag when the Discogs authorization page appears
- Paste the authorization code into Mp3tag
- Done :slight_smile: