When you go to the 'Questions' tab, the 'Questions' link is highlighted. This doesn't happen when you go to the 'Badges' tab. When you hover the link, it works. It just doesn't work when you're on the tab.
(The questions link when you're on that tab; the badges link when you're on that tab)
This bug occurs on the child sites I checked as well.
This might be because the URL changed from /badges
to /help/badges
.
I like the new badges page by the way!