Whenever I try to link some images which are hosted on amazon, I get this "Image Url not valid!" error message which I think it's related to URL filtering(regex or something) or perhaps its length. Example of image which I can't link in a post: p.s. If I do it by CTRL+V, it works like a charm but whenever I try to do it using the hyperlink icon in editor's menu, it just won't let me do it.
I think there's an issue with images at the moment. I'm unable to upload any pictures, and I've seen that others are having the same problem.