New open graph settings

I am using Facebook comments for my wordpress blog, so far evertyhing was working good, but recently, when the user comment on my site, their comment doesnt get posted on their profile even though they thick the option saying publish thi开发者_Go百科s on facebook at the comment box. Is there any recent setting or option to fix this problem? Or how can I test and see what is the cause of the problem?

And, Open graph brings pretty nifty cool options and settings, do I have to change or specify any special options for the comment box used on my site?