Hi there,
Please check if disconnecting and reconnecting Jetpack, or else completely removing and re-installing it helps.
If not, are you willing to share a link to your site so we can check it from our end?
If you don’t want to share it publicly, please open a support ticket at https://jetpack.com/contact-support/?rel=support and include a link to this thread, and we can help you there.
Interestingly, I navigated over to the Jetpack page from my site to do that, visited the Plugins section first just to see what was there (10 or so updates pending), then navigated back to the main JetPack page. Upon which I saw notice that plugin after plugin was automatically being updated.
So, merely navigating the area (I never even got to the disconnect/reconnect section) awakened it, which is very strange. Should I open a ticket? I ran the site against your Debug page, and it came back fine.
It won’t really help to open a ticket now, as there’s no longer a problem we can check, but please do should this happen again.
I’m guessing a stuck sync or a communication problem with your servers might have been the cause, in which case a reconnect would likely have fixed it, but it sounds like you did something that triggered a new sync in any case.
I’m marking this as resolved, but feel free to un-resolve should this crop up again, or if you have any more questions.