I tried your solution, but now we receive this error:
[INFO] [launch]: All log files can be found below /home/husarion/.ros/log/2021-02-08-08-34-57-445929-husarion-16073
[INFO] [launch]: Default logging verbosity is set to INFO
[INFO] [rplidar_composition-1]: process started with pid 
[INFO] [static_transform_publisher-2]: process started with pid 
[INFO] [rosserial_node.py-3]: process started with pid 
[INFO] [rosbot_tf-4]: process started with pid 
[rplidar_composition-1] [ERROR] [rplidar_composition]: Error, operation time out. RESULT_OPERATION_TIMEOUT!
[rosserial_node.py-3] [ERROR] [serial_node]: Unable to sync with device; possible link problem or link software version mismatch such as hydro rosserial_python with groovy Arduino
We already tried the everything, but all we got until now are only problems.
We have strict necessity to work with ROS2 Dashing, but at this point we would gladly try out the version of the firmware for ROS2 Foxy, if that was available.
We are honestly a bit upset, firstly because it is generally a really bad practice to interrupt the support for a version of the software when the new one is still not available, and secondly because my original post is 18 days old and the Foxy version is still not available.
Our work has been blocked for 20 days because of this, and we are late on schedule.
I hope the Foxy version will be out soon, or at lest you release a fix for this problem.