That's the culprit host https://jssocial.pw/ppkey/fget/pic8/upload/9XenHXlMsh.png Since it doesn't return an error but an empty page, pic8 can't switch and serve another one. @picman I think a RE check on the host link (that returns a mime type in the header) can be added to check if they actually serve the image. If the answer doesn't contain one that matches the extension, that means host blocked pic8 uploads and serves a fake/empty answer instead.