Jetpack: Sharing/Publicize not working anymore

Hello everybody

I installed this plugin a few weeks ago. It works perfectly. Thanks!

However, since a few days my Sharing/Publicize from the Jetpack plugin is not working anymore. I have active connections to LinkedIn, Twitter, and Facebook. All are connected within the Settings -> Sharing page. But my last post was not publiziced on any of these connections. When I am inside a new (unpublished) post and want to edit something in the “Edit Details” section from Publizice, nothing is stored. After a “Save Draft” and reloading the page, the default values are present again.

Do you have any idea? Could this be related to your plugin (since Jetpack disables some of its own open graph functions when detecting other similar plugins)?