Went up to the flying school yesterday to show the instructors my Evo (and let one of them take it through a few circuits—he liked it). Then I decided to fly the second battery just brushing up on some of the manoeuvres that I’d had to master to gain my licence last year, and video it. The Evo recorded about 15 minutes of video—and then the recording switched off. Tried restarting it two or three times, but it stopped recording each time after one or two seconds. It’s a 64gb card, so it wasn’t full. When I got home, all of the videos were there and normal, including the short ‘burps’. I’ve reformatted the card and will venture out later today for a test. It did occur to me this morning that with four students flying Phantoms within close proximity (closest maybe 30 metres) it could have been some sort of signal interference? Any theories welcome.