Hello @Ron_Ross — Thank you for sharing your report with us, it’s always appreciated!
To start may I kindly ask that you, for one of the albums where you’re seeing the incorrect cover art, go to Edit > Edit Album and grab a screenshot of the Album Artwork section and post it here?
You can check out some more information about our cover art rules here:
As mentioned in the post above, Roon is going to use the highest resolution image available for the artwork. In the event that this is incorrect, you can change the image being used in the Album Artwork section of Edit Album. You can also adjust the default behavior by going to Settings > Library > Import Settings and choosing the default behavior for Artwork.
-Dylan