@Ryuzaki_2 confirmed. I updated the tags of both albums to reflect “Tina Dico” as per my original post …
In the Red:

Count to Ten:
… and a plex dance later both are now unmatched again.

I’d also bet its unmatched for you as when they are unmatched like this stuff like Popular Tracks don’t work and from your screenshot I don’t see any.
So to summaries, in this example artist is matched but albums are not.
