Need Help with Litchi on MP

[Hummingbird 1]

Can someone please help me with one issue. I flew my Mavic with Lithci. I created waypoints using C1 button. I set a few waypoints while flying the magic just three feet off the ground (Yes three feet !). The mission uploaded and ran smoothly except the Mavic flew at about six feet and not the height i flew it. I went in the settings of each waypoint and changed the height down and flew again. Same issue - the Mavic wanted to fly at a minimum height of six feet. Is this a safety feature (which makes perfect sense) or there is a way I can fly it really low. I had disabled downward vision sensors.

Thanks