Nav2 nd robot_localization

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Hi everyone,

currently I am learning Nav2 connected to robot_localization. When following the tutorial on https://navigation.ros.org/setup_guid... the topic /accel/filtered is missing when calling "ros2 topic list".I prepared all files as mentioned on the side.

Can anybody help with ths issue?

Regards, s0nc

EDIT: BY further experiments I tried to run the ekf_node from the command line with the only parameter publish_acceleration:=true and the topic /accel/filtered is published. When running it from the launch file it does not.