Sorry if this has already been noted. But, I have a
P2 Vision +, P3P, Inspire and now the Mavic Pro. Love it. But, it kept giving me a forward sensor error, check App. I would try to calibrate the forward sensor over and over and it would fail. After two days of trying to calibrate over different surfaces I noticed a little(tiny) plastic piece stuck to my hand. Low and behold, the forward sensors come with a tiny protective film on them. Removed the other (one had already stuck to my had while trying to calibrate) one and it calibrated within 30 seconds and now the error is gone and it is stable as a tripod inside the house now(it's raining outside again, still in Rain record setting Seattle area).