Hello,

I am currently using turtlebot3 burger. I followed the emanual guide for turtlebot3 from here . After launching the navigation nodes and defining initial position, I noticed that robot sometimes fails to clear local costmap after the dynamic obstacle disappears. Usually a few dots remain on the costmap and that makes trouble for my robot. Here suggests to add wall in simulation to fix it using raytrace, but that is not possible in real world applications. Anyone can help?