And yet so many crash into the water for no reason.
Perhaps the correct statement isn't "no-one has ever" but more that "Rarely people have had problems with radio waves getting scrambled".
Specifically GPS signals. Maybe some of the satellite...
Sorry but I disagree it has been posted many times that the water reflections and movement causes issues with the sensors on the drone if it was just a one off you could ignore it but too many have said the same thing for it to be a coincidence.
So here is what sometimes happens to these older drones, the batttery swell up and can sometimes stretch the inner core of the battery compartment so that when you put in a newer batter becomes loose, It only takes a spit second for the battery...