hendrik on 12 Nov, 2018 02:08 PM
apologies for the late reply—I was not at work last week.
beaTunes attempts to use the artwork embedded in your files. If the available artwork is a little small or not available at all, it attempts to look up the artwork online. Apparently, something with the lookup goes wrong in your case.
iTunes either displays what's embedded in your file or what it finds in its online database.
I'd be interested in finding out how the lookup fails. Could you please reproduce the behavior and then send me your logs? You can do so via Help -> Upload Logs.