I been looking at some flight logs which have been posted on this forum and note that at points in the person flights the IMU Altitude is in negative.
This would i persume means that the drone is now under the drones take off height.

So my question is does this negative IMU Altitude have any effect on the drone such as its abitily to auto land or any other effect.

Is there a limit to a negative IMU Altitude.

Hi there. Thank you for reaching out. Can you provide us a screenshot or examples showing the negative IMU that you mentioned on the post so we can provide you with an accurate resolution? Please keep us posted. Thank you.