Some users have recently reported instances where artwork properly identified in their RSS feeds was not showing up in Apple Podcasts.  Libsyn has reached out to Apple in an effort to find a solution for these feeds.  As an interim step we have made some minor adjustments to our feeds in the hopes of forcing Apple Podcasts to display artwork properly.  We are also encouraging our users to upload images for their show that are at least 600 x 600 pixels or greater. We will continue to pursue working with Apple in an effort to resolve this issue and keep you updated via our support blog.