2 Lidar Lightware no retro-action

Good evening

I apologize in advance if this post is not in the correct 3D

I have 2 identical drones with N. 2 Lidar Lightware SF20/C … the first for the quota and the second for Proximity

The firmware of the 2 drones is identical, the lidar firmware are updated, the lidar have different addresses (102 and 103) but one drone works perfectly and the other does not

In the one not working in reality the “Sonarrange” parameter indicates exactly the quota while in CTRL+F Tab “Proximity” I perfectly see the distance … only when it is in flight I have not retro-action in case of obstacle (not yes stop or backwards in case I go against him with a billboard)

Do you have any suggestion?

Thank you