Hi there,
I just noticed that if I have a notification in my picture, say a friend accepted my friend request, and I clicked on it and read the notification , another notification appears on the notification icon on the right side of my name. Clicking on it, and it’s just the same notification as the one before.
Probably the changing of status of the notification is not triggered by the notification alert that is on the picture? I don’t know of course. Just telling. 
