I think I see what is happening.
The top-level folder I added to Mezzmo that contains all my music has the expected behavior. The artist folder is the folder.jpg at the artist level of the directory and uses the same image for the backdrop. The individual album's art is correct (album level folder.jpg)and the backdrop for those albums is the same folder.jpg
However, the album artist active playlist does not. It uses the first album's art for the artist art. The album art is correct, it's just that artist level art that is not.
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