A couple of times I have had the video feed on the phone freeze. It happened again today but the telemetry seemed to be working. I tried starting and stopping a video, took a photo but it was still stuck. The only way I could restore it was to back out of the camera part of the app and go back in again. Has anyone else had this problem ? btw, the weather here in northern England was glorious. The skies were clear blue, a gentle breeze and even a touch of warmth in the sunshine. It was such a huge contrast to what we have been enduring recently. My sympathies go to those who are drought ridden on the west coast, snow bound in the mid & east or flooded here in the UK . Apparently we return to a week of **** weather tomorrow. Edit: as a matter of interest, if you completely closed the app mid flight would it trigger a RTH ?