iOS 10 banner notifications not disappearing

I am running iOS 10.0.2 on my iPhone 6 and iPad Pro.

I have found the following problem on both my iPhone 6 64gb and my iPad Pro 9.7 32gb:

While in applications such as Notability, Photos, Safari, Clash of Clans, when I get a BANNER notification, it doesn't disappear on its own as it states under settings. In order for it to disappear I have to actually click the home button then return to my app, or slide up on the notification to make it disappear.

Things I have tried: 1. Restarting both devices, 2. changing all settings to Alerts AND None, then resetting back to Banners and restarting again, 3. waiting as long as a minute to see if notifications will disappear.

None have been successful.

Anyone have this issue and know of a way to resolve it, if it's resolvable?