Not sure if this happened when I updated to Jetpack 2.7 or when I updated to WordPress 3.8. All I know is that up through December 10, my WordPress posts were publicizing to Facebook, but starting with the post I made on December 12, it stopped working and I've had to manually post links on FB to my posts.
I haven't installed any other new plugins. I'm pretty sure things broke when I updated either WordPress or Jetpack to the latest version last week. Any help would be appreciated.