A couple of days ago my Twitter app stopped showing the app badge notification count for "notifications" (favorites and retweets) but it still shows them for "messages". I have confirmed that badge app icon is enabled in the settings, outside of that I'm not sure why this is happening other than a possible update. The only other consideration is that I've exceeded 8000 followers, maybe Twitter limits them when you reach a certain point? Anyone else notice this? iOS 8.4.1