HITL of custom model show "Tx queue overflow"

[AllenHuang]

I am still facing this problem when I am customizing my own gazebo model but connecting with Pixhawk mini.

I am using the same setting of mavlink plugin in the iris.sdf. And following what stated on the setting of HITL, the problem of :Tx queue overflow still appeared.

Any solutions or suggetion are welcomed!!!!!

Originally posted by @AllenHuangDongyue in PX4/PX4-Autopilot#19665 (comment)

[AllenHuang]

Sometimes it works, sometimes it shows overflow.....

[AllenHuang]

I am still not sure how to make sure it can work, sometimes it works, and sometimes doesn't.