I have 2 new messages. When I click the drop down, it just redirects to StackExchange. StackExchange dropdown still works as expected.
Edit: It may be related to: Clicking on the StackExchange™ MultiCollider SuperDropdown™ links to StackExchange.com before page is loaded
I have a fast connection but the notification bar at the top of the screen wasn't loading correctly potentially causing a "virtual slow connection".