Message getting stuck

[saadnec]

am having an issue while using multiple iris vehicles in Gazebo using ros melodic. I am currently using 3 iris, sometimes the 3rd iris doesn't take off, so I have to close the gazebo and relaunch it again and then all 3 takes off and the program proceeds. What I understand is that the message is not passed correctly. The message gets stuck in the buffer. Is there a way to empty the buffer ? I am using ubuntu 18.04.

I am using the code from here "https://github.com/PX4/PX4-Autopilot/...".

I modified this to control 3 UAVs. I face this issue frequently like 5 out of 10 times. I then have to close gazebo and launch it again.

[Jaeyoung-Lim]

@saadnec Please provide more details on your issue with logs and descriptions on how to reproduce.

I am using the code from here "https://github.com/PX4/PX4-Autopilot/...".

Also, it is not clear where "here" is since it is simply pointing to the root of the repo