Picard found all songs but stuck with green notes

Everything goes fine - album was found as were all the songs.
However, there are green notes on some songs that won’t save. It maintains the “unknown…” title.

The song title, length, artist, etc are good but why won’t Picard save it (It will save the green boxes->green checks)?
Isn’t there a way to tell Picard that it is correct and to save the song information?

If you’re seeing music notes, that means there are no files paired with the tracks so nothing to save. Check if there’s a folder of unmatched tracks at the end of the album, maybe you can match them manually