Not working Create 3 lightring by ros2 topic

[seungin-cha]

Hello, I'm a turtlebot4 user.

I'm trying to do turtlebot4 tutorials, and I found one problem not working.
Create 3 does not respond to ros2 topic /cmd_lightring publishing.
I'm using this same code, https://turtlebot.github.io/turtlebot4-user-manual/tutorials/first_node_cpp.html.
So I cannot see light color changing even if the publishing data has override_system=true.

This is my try:

$ ros2 run turtlebot4_cpp_tutorials turtlebot4_cpp_first_node
[...] [...]: Button 1 Pressed!
[...] [...]: Button 1 Pressed!
[...] [...]: Button 1 Pressed!
...

Interface butons respond to clicks normally.
And ROS2 communication is good among User PC, RPi4, and Create 3.

This is my diagnositics result:
It seems no problem about lightring control.

Thank you!