No Topic Visible if running micro ros agent on Humble, but these are visible if the agent is running on Foxy

首先，在 ROS 2 Humble 上使用 micro-ROS Agent 重现该问题，并按照描述同时使用 serial 和 UDP，将其 -v6 输出与 Foxy Docker setup 进行比较。检查报告中 ROS_DOMAIN_ID 和 RMW_IMPLEMENTATION 的不同变体。当 agent 在 Humble 上运行时，可以发现 topics 和 nodes 并对其执行 echo，即表示完成。

No Topic Visible if running micro ros agent on Humble, but these are visible if the agent is running on Foxy

• Hardware description: Linux and ESP32
• RTOS: -
• Installation type: micro_ros_setup
• Version or commit hash: Humble

Steps to reproduce the issue

I have followed the tutorial from the links below:
https://micro.ros.org/docs/tutorials/core/first_application_linux/
https://micro.ros.org/docs/tutorials/core/teensy_with_arduino/

The issue is, if I run the micro ros agent on ROS Humble (both serial or udp), I don't see any topics and nodes related. But in -v6 I am able to see the data is publishing.

The thing is, I am able to subscribe it through node. But I am not able to see the topic list in the terminal.

I have tried unset ROS_DOMAIN_ID, set the same ROS_DOMAIN_ID, set the same RMW_IMPLEMENTATION, unset the RMW_IMPLEMENTATION. But nothing works.

Then I tried to use foxy to run micro ros agent (using docker ros-foxy), I am able to see the topic list on Humble. And I also able to echo it. as you can see the picture below

Expected behavior

I should be able to see the topic list, while the micro ros agent runs in the Humble.

Actual behavior

Unable to see the topic list, while the micro ros aget runs in the Humble.

Additional information

This is my env, even if I didn't set the same ROS_DOMAIN_ID, and didn't set the RMW_IMPLEMENTATION, if I run the agent on Foxy, it still work and detected on Humble