Same problem. Do not like the new sharing format on FB wall via publicize. Don’t know whether this is a FB or a Jetpack issue. Don’t have that cache-ing plug in. It’s not that the articles don’t get published when scheduled, it’s that the format of the PUBLICIZE on FB wall is messed up. I just pulled my FB account off of publicize til the Jetpack support starts up again.
If I SHARE the post from my site, using the sharing button, the format is ok, like it used to be. So it is something with PUBLICIZE.