Hi Gang Tried to fly this afternoon. A bit windy. Anyway, got to hover at about 3 m and it starts to drift erratically. I try to land but had too much drift (my fault). Broken prop only damage (phew). Uploaded the log to HD - HealthyDrones.com - Innovative flight data analysis that matters and you can see that I never had less than 10 GPS sats, but the mode kept flipping back and forth between GPS and ATTI. Any bright ideas, please?