Some bug in 4.4.1 preventing people from publishing posts?

A couple of my clients seem to have gotten an unusual problem since the latest update–trying to publish a post doesn’t do anything. No page reloads, no success message, no published post. The post can be set to “Published” using the quick edit menu but something seems to be interfering with the function of the button. Has anyone else experienced this too? I’m starting to suspect it might be a bug in the update.