[bug]Message Notifications don't go away

After I view a message in my MDL inbox, the notification (red dot in avatar) is supposed to stop showing up. But it doesn't, making it seem like I have another pm when I don't. When I go to the inbox page, it shows the message that I clicked on (multiple times)as unread =/ when i go out, it still appears as unread. The only time it clears is if I press the "Mark All As  Read."