This is the second time it's happened now in different locations. I have been sat up at 120m happily for about 5 minutes, then last night I noticed my video feed was frozen. Moments later i got the red bar at the top warning of no signal. I was still getting telemetry and map data. I brought it down, restarted dji go and it was fine. Any ideas what is causing this? I'm using a Nexus 7 2013. I don't understand why it can't re-establish a video feed on its own without having to restarted the app?