Setup pixhawk with two rangfinder sensors, lidar of optical flow here and RY-US42


I’m trying to setup two rangefinder sensors on pixhawk, when i setup just one it works correctly but when i add the second
I get juste one measurement.
i connect the optical flow Here in CAN port of pixhawk,
here is the setting that i made :
( )

i connect also and GY_US42 sensor in I2C and i set :
rngfnd2_addr = 112
rngfnd2_min = 20
rngfnd2_max = 700
rngfnd2_type = 2

how can I have the values ​​of the two sensors at the same time?