rangefinder issues

[Ron-yadin5]

how i run mavros

ros2 run mavros mavros_node --ros-args -p fcu_url:=/dev/ttyTHS0:115200 -p gcs_url:=udp://@127.0.0.1

Issue details

i get the error:

my fcu parameters are set to make the rangefinder my pos_z source (ek3_src_pos_z = 2)
before i start the mavros node i can see good reading of the rangefinder in mission planner

after i run the node i get: "[mavros.distance_sensor]: DS: no mapping for sensor id: 0, type: 4, orientation: 25"
the rangefinder value in mission planner also stops changing
"ros2 topic echo /mavros/rangefinder/rangefinder" shows the correct values
"ros2 topic echo /mavros/local_position/pose" shows incorrect and inconsistent z values

MAVROS version and platform

Mavros: 2.4.0
ROS: foxy
Ubuntu: 20.04

Autopilot type and version

ArduPilot 4.4.0