The last few times I've gone to fly, I'm getting "Weak RC Signal" before takeoff. I've tried the antennas in different positions (pointing straight out from the controller, 90 degrees to the P3, 45 degree angle), and I'm getting the same error. So, I'll power down the bird, controller, app, restart...and eventually after playing a while I get Safe To Fly GPS. What is that? I'm like 8 or 9 feet away. Everything seems fine in flight, and it doesn't seem to occur again...but it's got me worried and staying close to home. Anybody experienced anything similar? Is it anything to worry about?