Black Player does not have album art?

I am using Black Player (not the paid version) and I have it set to the preferred player in KLWP. The song info and artist info is displayed fine, but the album art does not show? I have it in a formula to show the album art when music is playing, but another image when paused.

Do you have an option in Black Player to hide the cover in the device Lock Screen? This is generally the cause of these type of issues.