range_bearing not availiable after finishing navigation subtask of Gymkhana task

[lijianwen1997]

When testing without docker, I was able to get data from range_bearing topic and use that to get closer to the pinger. However, when I tested it using the docker, I saw the boat was able to pass the exit gate but after that, it could not receive any data from range_bearing and it just stayed at the exit forever. I have already used the latest version of vrx_server and vrx_gazebo. I am not sure how to fix this and I hope it won't be an issue when the VRX team tests our final submission.