The last two times I've flown my P2 I've been out around 700 meters and the FPV picture starts to break up and actually goes black for a short while but does come back and the P2 has gone into Failsafe mode and then RTH. If I toggle the P1 switch I can get control back and I can continue flying. My first thought is that I was flying too low and therefore I was losing LOS with the controller but the more I thought about it occurred to me I should lose the FPV transmission connection before I lose the RC. Now I'm wondering if there is a problem with my RC. Does anyone have any thoughts about what may be happening?