I'm seeing a lot of 'weird' behaviour in the suggested edits review queue this morning.
On some items in the queue, submitting a review (be it approve, reject, or edit) simply leads to reloading the same review page. No action appears to be recorded. When you encounter one of these items, you are stuck at that point in the queue. I have manually edited the post in question to unstick the post.
I thought I had found a work-around by clicking "Not Sure" then going back in the browser history to choose a different review action, but that action is then simply not recorded.
Example posts (now unstuck):
I tried this in both Safari 6 and Firefox 15 on Mac OS X 10.7.5 to make sure it's not a local issue.