There appears to be an issue uploading art to this release:
I have tried several times and each time it gets stuck showing the “Image not available yet” error. Clicking through on the “original” link leads to a “Page not found” error page on IA.
I have successfully uploaded thousands of cover art images. I have successfully uploaded cover art before and after trying to upload to this release.
Per the notes in the following edit, @MeinDummy also tried uploading to the same issue and had the same error:
He was also successful uploading to other releases.
Any suggestions on how to troubleshoot this further?