I had a mid flight No Signal warning for a couple of seconds and a then lost full RC connection with my P3P.
I was lucky it engaged RTH and while it was coming back to me i got signal again and cancelled the RTH and managed to land it manually. Compass MOD around 1500 with 15 sats and IMU calibration. Later i left it flying right in front of me till discharge and lost signal a couple of times with altitudes of 5-10 meters and 10 meters away from me.