Same here and still no answer from support. This is since the update from 13th june. If you break it you fix it en don'r wait so long! Come on support DO SOMETHING ABOUT IT!!!
I have the freakin same problem..... I'm connected, but says "failed, not connected to facebook"... I've disconnected & reconnected to FB numerous times...still nothing. Have rebooted my Ipad Air also, still diddely squat... Please fix...