Recent Custom Posts Widget breaks the widget area in Wordpress

Whenever I have the recent custom post types widget plugin enabled, it messes up the widget page (under Appearance -> Widgets). It basically disables the dragging and dropping of widgets so I can't add or remove any widgets. It also seems to mess up the widget areas section and not all of those end up showing up. I am using the latest version and am on Wordpress 3.4.2.