So here I was on my 12th flight with my P3P. I have quite a bit of experience flying smaller drones but not with something GPS and systems aided like the P3P. I was trying to land on a boardwalk style bridge over a stream and as I pulled down on the stick it touched down gently but then there was a burst of power so one leg lifted and it rolled into the water. 15 seconds later it was out and off. Now chilling in rice. I looked at the data and I was 100% down with no other inputs. Anybody knows what happened? Did the opticals make it freak out? Is it because I landed lower then my original take off point? Loosing 1500$(maybe not fingers crossed) is one thing but not knowing why is hard to accept.