Wiki widget bug

There seems to be a bug with the widget that comes with your Wiki plugin. When I enable to Wiki articles widget, it does not show the full list of SubWikis that are shown on the Wiki front page. It truncates them after showing a Wiki that has several layers of SubWikis. Please see the screenshot.

Also, in the Wiki widget settings, the SubWikis seem to show regardless of whether I set the "Only top levels" to Yes or No in the dropdown.

Your help would be much appreciated so my visitors can make use of the widget when they navigate the Wiki.