Messages in Mountain lion/facebook chat

Hi all,

I have had messages in mountain lion set up to do facebook chat via a jabber account. it has worked pretty well over the past few years. However, since yesterday, i notice that no friends are showing up under "facebook friends" in messages. (sometimes one friend might show up). But if i log into Facebook, clearly there are more friends online and chatting. I deleted the account and created a new one.....still no change. Does anyone else who uses messages for facebook notice this recent behavior? I wonder if its something with Facebook? any ideas on how to fix?

thanks