Bookmark navigatior display bug?

So I really like the new page and bookmark navigation features as they'll clean up report navigation tremendously for my organization. However, I found a small bug on the bookmark navigatior buttons where a button remains in the selected state after another button is selected. The selected state clears once the user hovers over the original button again, but I'm seeing this as a potential point of confusion for most of my userbase. This behavior is present both on the desktop and published server version.

I know I can have the selected and unselected versions look identical, but I feel that defeats the purpose of the feature. Any insight on how to correct this would be greatly appreciated.