it happened to me for a second time. the first i uninstalled & re installed, the second time i simply deactivated, re activated & reconnected jetpact to wp.
next time i’ll see if all i need to do is to disconnect it from WP-
i was just able to get mine working by uninstalling jetpack & reinstalling.
i’m guessing the issue had something to do with updates 😉
In the same condition. Publishing but not pushing/publicizing to twitter or Facebook.
everything is updated to the latest versions & I have unlinked & relinked both Facebook and Twitter.