Hello, For some reason the app bar at the bottom of my iphone flashes blue when I double click the home button to close apps. I have tried resetting my phone, and its still doing it. Anyone else have this? I am on an iPhone 7+ with iOS 10.3.1 .. I am thinking this started when I upated to 10.3.1 .. I also did a complete restore of my phone. Same thing. Any advice? Thank you!