So yesterday I was flying out about 1700 in my suburban neighborhood and it had good RC signal, 4 out of 5 to be exact. A few seconds later it suddenly said lost signal and the controller light turned red as well as the video feed turned grey. It was set to return to home but it just sat there and hovered. In a panic I drove to it (forgetting controller at home like a dummy) and after a few minutes it shot home due to the 30 percent battery safeguard. Later on I tried flying semi close to home and I shut the controller off and it was returning to home properly. I chalked it up as a fluke. Tonight however, it happened again at about 2200' out. Signal appeared to be great but suddenly it dropped it again, yet it didn't return to home. I toggled the return to home switch and it started coming back, I didn't expect it to work since the controller light was red. I then decided to keep flying out to get it to "lose signal" again and once it lost it I moved the sticks and I had full control. So that explains why it didn't return to home on its own but why on earth is it telling me I lost signal when I really didnt? Defect?? Sorry for the long winded explanation. I just figured I'd put the details in.