I will be in my email app or Safari and a new iMessage will come in. The banner pops up at the top of the screen, but since updating to 10.2 the notification doesn't go away until I click on it or go into iMessage. It used to pop up and then vanish after a couple seconds. This is a real pain in the pattute because it often covers a "Send" button on the app its interrupting. Anybody else notice/hate this?