Local Costmap of move_base Package Does not Refresh when the Robot is Stationary.

Hi, I am encountering the issue that my local cost map does not refresh when the robot is stationary. This would create significant problems when there are moving obstacles around the robot. You can observe the behaviour here at 0:22 [Local_costmap_issue](https://youtu.be/sHPK6NG8IzQ) Here is how I launch my move_base node in my robot launch file: Relevant data are getting published on `/map` topic at about 16 Hz, on /scan topic at 20 Hz, on `/odom` topic at 20 Hz, and on `/tf` topic at about 300 Hz. However, the `/move_base/local_costmap/costmap` topic barely gets published on, and does not publish anything when the robot is stationary. Also, here are my parameters: controller_frequency: 20.0 TrajectoryPlannerROS: max_vel_x: 10.45 min_vel_x: 0.1 max_vel_theta: 10.0 min_in_place_vel_theta: 0.4 acc_lim_theta: 3.2 acc_lim_x: 2.5 acc_lim_y: 2.5 holonomic_robot: true global_costmap: global_frame: map robot_base_frame: base_link update_frequency: 1.0 static_map: true publish_frequency: 0.5 transform_tolerance: 0.5 local_costmap: global_frame: map robot_base_frame: base_link update_frequency: 5.0 publish_frequency: 2.0 static_map: false rolling_window: true width: 3.0 height: 3.0 resolution: 0.05 Move base node parameters. shutdown_costmaps: false controller_frequency: 5.0 controller_patience: 3.0 planner_frequency: 1.0 planner_patience: 5.0 oscillation_timeout: 10.0 oscillation_distance: 0.2 I get the same behaviour on the actual turtlebot as well, and I would really appreciate any help.