You were a little late. Problem is fixed. But the menu you see is the old one.
For the new one, lets take our example
We have 7 Parent categories which should be shown in the menu. plus the sub cats, the total is 184. In the old menu, go to the menu config page mark the seven parents and click on add. Voila all is done and the menu is filled as it should. The layout you can change if you want as I has done in the test theme.
How is this done in the new menu?