This may not strictly be a bug, but I've noticed this happening with my MP3 player.
I do not have album art embedded in my music, and instead rely on an image within the album folder.
When deleting the album from my MP3 player, the music files are removed, but the album art file gets left behind.
I'd appreciate it if this could be fixed, as it can be quite confusing when browsing by folder.
Thanks!