John TGZ

Are you able to check if it works with the ROS_DOMAIN_ID environment variable set to 0 consistently across your environment?

I realised the error for PX4 SITL originates from line 324 to 334 of the file "platforms/posix/src/px4/common/main.cpp", from commit 2110eae25d32ef102c5e44f2590fd7f9d65fc44d: ```cpp if (test_data_path != "") { const std::string required_test_data_path =...

@ajshank Instead of ROS discovery limiting, you could also try setting a different `ROS_DOMAIN_ID` for each host machine and then using [zenoh-plugin-ros2dds](https://github.com/eclipse-zenoh/zenoh-plugin-ros2dds) to bridge them, which is a more scalable...