Hi. New member here, relatively new to flying. General flying practice on quite a warm (26C), calm day on the local rec - flying horizontally forwards, my drone suddenly lost altitude to about half (from about 10m to 5m I would guess) without any control input from me, then returned to normal control at the new height. Any suggestions?
@keithpenn58 Hi and welcome to drone Hub 
What drone was you flying when this happened?
Hi. A V168 Max Pro