Run the software on Mac and in the main interface, choose “Open Music Files” entry to clean up local music files.
Scanning progress will start automatically and with it done, all problematic music files will be displayed in specific categories for you to fix. You could check each file for fixing or simply click "Fix All" button to fix all music files. During fixing, you could click "Pause" button to pause fixing.
After all music files have been fixed, you could click "Apply" to apply fixed music files to its original library or click "Edit > Save Project" in the menu to save unfixed music files for future fixing.