I am using Chrome version 32.0.1700.107 m in Incognito mode.
While trying to edit the last 2 reviews I've had in the Low Quality Posts queue, once I start editing and the cursor was inside of the edit area, I could not get it out.
For example, I would try to click the Edit Summary textbox, yet the cursor remained inside of the edit area. I had to eventually just click Save Edits or some other button to move on.
Possible Insight into the Cause of the Issue
If you look at the [Editing...] button in the screen shot, it's not disabled. When you normally edit that button is disabled.
Here is another one that I ran into.
As you can see, it also has the [Editing...] button enabled. It's disabled until you click inside of the edit area, then it becomes enabled. After that, you can't do anything with the cursor inside of the edit area. You can tab out of it, but you then you can't get back into the edit area. You simply have to cancel out of the entire thing.