[Plugin: Jetpack] Publicize Not Connecting to Facebook

For whatever reason, my fiance and I can’t get Jetpack to push my posts to Facebook. All other publicize networks seem to be working fine (twitter, etc) I just can’t get FB working.

Note: my site is a blog migrated from WP.com, where I did use publicize to link to the facebook account in question.

Any thoughts? We’ve tried disconnecting and reconnecting everything in every configuration we can think of, but we’re getting nowhere.