Hi, first I’m on Mac and OS 15.3 but I remember this happening also on OS 14.X. When changing metadata for a song in Audirvana and saving that and then trying to choose next song data oof the album I get the album metadata instead and not the song metadata and the only way to edit the metadata for the next song on the album is to go back one level (like the artist) and then come back to the album and start all over again. It gets really tedious to correct metadata on several songs on album since you have to do this for every song that you correct the data for,
The metadata editor within Audirvana really isn’t very good, judging by previous comments/posts on here
I’d suggest a 3rd party app like Yate as you’re on MacOS.
I always use dBPoweramp Tag Editor (I’m Windows-centric), and never have a problem.