iOS 8 issue

Favor to ask - can anyone with iOS 8 give this a shot?    I have a user who saw a big blue rect blocking the screen on an iPad running iOS 8, which he said didn’t re-occur after exiting/starting again, and I can’t recreate on my iPhone 4S running 8.

Thanks…

https://itunes.apple.com/us/app/diver-down/id898589788?ls=1&mt=8