When I go to to my flagging page I see this:
The number of bronze flags is not visible (unless I mouse over, then I see the number in a tool tip).
Update: I've only seen this in Google Chrome (Version 31.0.1650.57) on a Windows 7 system. On the same Windows system, I tested it in Internet Explorer and Firefox where the issue did not occur. Also tested on an iPad with Safari - again, not seen. The exact link is, in my case:
but that last number will depend on your ID - I suspect only SE employees and myself can view that link (replace the number with yours to get your own flag summary page).