jpswade on "[Plugin: Jetpack by WordPress.com] Publicize not working - does not Publicize on Publish"

I updated Wordpress and installed Jetpack.

I connected Facebook, Twitter, LinkedIn and Tumblr for Publicize.

I wrote a post a few days ago, yet when I hit "Publish", it did not Publicize.

I wrote a post today and hit "Publish", it did not Publicize either.

I can't see any reason why it would not work and I've got very little to go on.

Can anyone shed any light on this?

Thanks.

http://wordpress.org/extend/plugins/jetpack/