UPDATED: Re-Embed Artwork v3.4
This script will export then re-import the artwork data of the selected tracks obliging the Music app to embed the artwork in the track's file's meta-data.
For best results, use with an album's worth of tracks--or so--at a time. Music may be obliged to perform a number of background tasks when applying image data and may prevent the script from proceeding if a large amount of data is involved.
- Maintenance and minor performance fixes
- Accommodations for macOS 13 Ventura
More information for Re-Embed Artwork v3.4 and download link is here.