You're right, I just woke up and misread it. Oops!
This probably has to do with changes that were made to allow the use of custom artist photos. I'm not sure if there's an easy way to go about getting artist photos from the files to the Artist Pictures folder on your harddrive. You might need to make a wishlist request to use embedded artist photos if none are available in the folder.
Maybe someone else has an idea...?