I’m having the same issue… updated to 3.1.1 and now the existing images are not showing up in the galleries or the embedded galleries inside posts. New galleries seem to work, it just can’t connect the dots with the old galleries.
Just one thing that I was curious about while reading the FAQ… i don’t have a _key folder in the admin folder now, I remember there being one. Maybe it’s in a new location? Does it have anything to do with this?
9. The images are not showing in the front-end
Check the file permissions for the image-store/admin/_key folder.
Also, Hax you’ve got a script on your site that keeps hanging Firefox:
http://ajax.cloudflare.com/cdn-cgi/nexp/aav=4114775854/cloudflare.min.js:15