I have enabled the Twitter, Facebook and LinkedIn sharing buttons on my blog, but only the LinkedIn button shows. I have tried redoing it and also disconnecting from Facebook and Twitter in Publicize (I was desperate :-D) The “hidden” buttons work fine. In the Live Preview it all looks great, but not the actual live blog.
I am having the same problem. I had enabled sharing buttons at the bottom of each post. They were appearing fine, and today they disappeared.
I have attempted to see in explorer and chrome, they don’t appear in either even after clearing up the cookies. Also, I have attempted to remove and reinstall them, but them also they are not appearing.