I have browsed the support/forums and have found this same question several times over. I’ve attempted to correct the issues based on the suggestions by WordPress staff to unauthorize and reauthorize FB through both WordPress and FB apps settings. I’ve done this multiple times over the last couple of weeks and I’m still getting nothing. My blog has only posted to FB one time out of the last 5 or 6 blogs. I went through the procedure again this morning to reauthorize, wrote another blog and still it will not post. Please advise.