Hi Christian!
Hmm, this is indeed strange, the page has been reprocessed multiple
times and we are still getting that error. We can maybe ask the MIME
database what that file it downloaded actually is to improve the
message, but my guess is that we are indeed hitting some kind of AI
crawler protection and are getting served a HTML page or some other
stuff that isn't a PNG image.
I wonder if that this due to the useragent that appstream-generator
sets, because downloading the image with curl succeeds. It's all very
strange.
I'll add this to my todo list, and once I know more see if we can work
around this or maybe reach out to Codeberg if necessary.
Best,
Matthias
