Hovering is unstable

[864419409]

Hello, I would like to ask, why in the process of many aircraft hovering or flying, there will be a situation of aircraft rotation, or even falling, how to improve, thank you

[whoenig]

There is some information missing. Which tracking mode are you using? How many CFs? What kind of issues are you seeing exactly?

[864419409]

hello whoening ，The tracking mode I chose is defaultSingleMarker .I chose eight planes at the same time.But when I execute the trajectory（niceHover.py），the plane might spin or fall in about 10 seconds.
I also use some simple flight paths, which can happen even if the plane can't execute the path (stay in place). But the plane is actually connected to the switch

[whoenig]

Does flying a single CF work?