I have had two issues related to album artwork, for the most part it works fine, but I've found two things that seem like issues and I am rather bothered by.
1. Album Artwork is cropped in 'Album Cover' viewWhen the album cover view is set to display the track list directly under the album cover, it will crop the edges of the artwork so that they do not appear.
As an example:
The cover art for this album should have a border around the edge (left), but it's almost entirely removed in album cover view (right).
I'm sure you should be able to find a variety of example in your own library.
2. 'Show Album Cover' option on Player Controls does not correctly display album covers when combined with 'Auto-Pick Panel Colours'This only seems to affect album covers that are taller then they are wide. MusicBee seems to create a grey bar that pushes the artwork out of where it is supposed to display.
This can range from a small grey bar at the top of the artwork, to completely hiding the artwork.
The issue completely goes away when auto pick panel colors is disabled, so I'd assume this is an issue with that.