I'm currently running iOS 9.2 on a Verizon iPhone 6s Plus whenever I get a Mail notification, I cannot close it out in my notification center. It doesn't matter if I read, delete, or reply to the email, the notification does not close out unless I restart my phone. This only happens with Mail notifications, as all other close out. It's been happening since the iOS 9.0 public beta, and since then I have updated to each new iOS release and still have the same issue. I originally had an iPhone 6 Plus but when I switched to a 6S Plus, my iTunes backup brought the bug with it over to the new phone. I have also tried resetting all settings and that didn't work. Does anyone know of a fix for this that doesn't involve me losing any data on my phone?