Anyone else experiencing a small problem with the iPhone app not acquiring video link (telemetry ok) when the drone has been used then used another time. Iphone 5 and latest firmware and latest app released in the last day or so. My screen shows a greyed out image of the last video it saw before drone was last switched off. I have to manually quit the app (i.e. double tap on home button and swipe it off screen) then when I restart app it acquires video ok.