To solve the rangefinder problem you must do this:
CONFIG/CONTROLS/WEAPONS/LASER DISTANCE add a key
Press that key for any measure
Oh one thing more
This new method does not work correctly due to measurements on rocks the rangefinder does not recognize the textures and does not make a valid measurement
i add a picture like example
https://gyazo.com/551f5f098d791e599c0ac31669d54879