Loiter with px4flow and lidar terrain following off

Hi all
Assembled a copter with pixhawk + px4flow + tfmini
I set the flight mode to the loiter, the position in good light holds well.
I can’t set it up so that there are no terrain following.
If an object appears under the copter, it jumps up.
How can I set it up so that there is no jump when changing the height.