I've just released Mp3tag for Mac v1.8.20 with the following changes:
Changed, Improved & Fixed
- Occasional crash due to concurrent read/write access to internal storage.
- Tag Sources with Windows line breaks
CRLFproduced extra empty line for each line break. (#64214)
It's a free update! You can update the Mac App Store version via the Update tab in the App Store app and the standalone version from within the app via File → Check for Updates .