Hi, my mini3 drone once taken off is not stable and slowly turns to the right. sometimes it descends downwards, veering to the right. Other times it descends dangerously toward the ground, all without touching the controls, immediately after takeoff. How is it possible? Why does it lose stability when stationary?

Hi, my mini3 drone once taken off is not stable and slowly turns to the right. sometimes it descends downwards, veering to the right. Other times it descends dangerously toward the ground, all without touching the controls, immediately after takeoff. How is it possible? Why does it lose stability when stationary?