I was looking at a few of my old submissions, and some of the images are broken now. This one in particular is broken, and I haven't fixed it yet. Taking a glace at the page, if I edit my first line to be ![cover](///raw/dd3/z/ac6e.png) instead of ![cover](///content/dd3/z/ac6e.png), it works. Not sure where the difference came from, if it was something I did weird years ago, or if this might be a general issue, but it used to work, and now the pages are broken. I've fixed all but that one of mine (was just a few older ones, all the new ones seem fine).