As I was flipping through tabs in the large menu, I hit the Search tab and my menu completely broke. It seems that selecting menu tabs too fast causes two menus to overlap on top of one another.
I managed to correct it by selecting the Settings tab, and then randomly selecting the other tabs until the menu figured out there should only be one of itself. I have been unable to recreate the bug.
This was done on desktop, just trying out the new menu.