Alessio,
Glad you got something going that you're happy with. We hate these types of bugs too as we're the ones that usually get blamed.. that's why we have easy settings to get around the most common issues that have cropped up in the past
Facebook actually updated the bug, and redirected it to a different one with a higher priority. Their last report from a few hours ago states that it should be fixed soon:
developers.facebook.com/bugs/500201816697073
Should you need anything else, just let us know.
Thanks,
Alex