Cannot subscribe/publish topic from/to ROS2 jazzy container in Simulink

Issue

Currently, I am experiencing a problem that MATLAB R2025b is not able to subscribe/publish any topic from/to ROS2 jazzy container. Tested with a simple publisher and subscriber (C++) of ROS2 jazzy, Simulink subscribe/publish block was not able to subscribe or publish any topic. I have tested on two variants of ROS2 jazzy container images but I got the same result.

Meanwhile, publishing and subscribing from/to a ROS2 humble container is possible. Since doing a pub/sub using a docker container had no problem, I suspect that something is missing for the Simulink side setup or it might potentially a glitch of the R2025b. Is there anyone experiencing the same issue?

I attach the tested condition and simulink blocks used.

Tested environment:

- Ubuntu 24.04 LTS & Ubuntu 25.10

- MATLAB R2025b & MATLAB R2024b

- althack/ros2:jazzy-full, althack/ros2:hulble-full, osrf/ros2:jazzy-full-desktop

Container deployment command:

docker run -it --rm --net host <IMAGE> bash

Simulink block used:

[Angelo Yeo]

I suspect that something is missing for the Simulink side setup or it might potentially a glitch of the R2025b.

If you believe this is a bug of MATLAB R2025b, please reach out to technical support team. They have strong connections to development team.

Contact Support - MATLAB & Simulink

[Abhishek]

Hi @Dongho Kim

Could you please help by answering the questions below? This will help me narrow down the issue:

1. Is MATLAB installed on Ubuntu(on same host)?
2. If yes, please try launching the container without host networking by using the following command:

docker run -it --rm <IMAGE> bash

3. Are MATLAB and docker container using same RMW_IMPLEMENTATION?