So new day, new bug I guess. I tried to publish some images, but autotagger did not apply any tags to the images. Normally it can happen that an image is hanging in the autotagger showing no progress. But this time it just skips tagging when you reload the page or schedule for publish. So no rating gets applied and nobody can see the image upon publishing. I filed a ticket but don't expect to get an answer soon.
Edit: Since you can see the article now, the cover image finally got rated, so the image autotagging/rating system works again. I'd suggest articles without rated cover images should be visible to other users (according to rating of course) with the cover image hidden.