Jetpack 2.1.1 not e-mail subscribers

I’ve been using Jetpack successfully for 6 months. My most recent post wasn’t e-mailed to subscribers. When I look at my Jetpack stats, it is not showing any subscribers, however when I look at my Jetpack subscription info on the subscribe page, it’s still showing the correct number of subscribers.

I’ve tried to deactivate and reactive Jetpack. Any suggestions would be appreciated!

I’m using WP 3.5 and Jetpack 2.1.1

Thank you!