We’ve been working hard to build the next major version of our plugin. In the meantime, we noticed that we goofed, though. The script we used in the admin panel of WordPress was conflicting with some other admin functionality. For example, if you were running Jetpack Stats, you’d notice that they never updated… the animated loading image would just stay there forever. We’re so sorry for any confusion we may have caused!
We released version 1.16 to eliminate the issue – so please update now and you’ll see things get back to normal.