Lidar stops spinning once i run turtlebot3_bringup turtlebot3_robot.launch

edit

when i switch on the turtlebot3(Waffle with Intel UPsquared) the lidar starts spinning by default. However as soon as i do the -

roslaunch turtlebot3_bringup turtlebot3_robot.launch

the lidar stops spinning and nothing is published in the scan topic.

i tried running th enode

rosrun hls_lfcd_lds_driver hlds_laser_publisher

this node precisely stops the lidar and nothing is getting published on the /scan topic

below i am attaching the terminal output for the bringup launch file

$ roslaunch turtlebot3_bringup turtlebot3_robot.launch 
... logging to /home/tello/.ros/log/eac62d16-fa96-11eb-8d52-6b7b9b0ca69c/roslaunch-fha-4482.log
Checking log directory for disk usage. This may take a while.
Press Ctrl-C to interrupt
Done checking log file disk usage. Usage is <1GB.

started roslaunch server http://192.168.0.18:35387/

SUMMARY
========

PARAMETERS
 * /rosdistro: noetic
 * /rosversion: 1.15.11
 * /turtlebot3_core/baud: 115200
 * /turtlebot3_core/port: /dev/ttyACM0
 * /turtlebot3_core/tf_prefix: 
 * /turtlebot3_lds/frame_id: base_scan
 * /turtlebot3_lds/port: /dev/ttyUSB0

NODES
  /
    turtlebot3_core (rosserial_python/serial_node.py)
    turtlebot3_diagnostics (turtlebot3_bringup/turtlebot3_diagnostics)
    turtlebot3_lds (hls_lfcd_lds_driver/hlds_laser_publisher)

ROS_MASTER_URI=http://192.168.0.16:11311

process[turtlebot3_core-1]: started with pid [4490]
process[turtlebot3_lds-2]: started with pid [4491]
process[turtlebot3_diagnostics-3]: started with pid [4492]
[INFO] [1628686126.646088]: ROS Serial Python Node
[INFO] [1628686126.690837]: Connecting to /dev/ttyACM0 at 115200 baud
[INFO] [1628686128.839200]: Requesting topics...
[INFO] [1628686128.982289]: Note: publish buffer size is 1024 bytes
[INFO] [1628686128.991776]: Setup publisher on sensor_state [turtlebot3_msgs/SensorState]
[INFO] [1628686129.010194]: Setup publisher on firmware_version [turtlebot3_msgs/VersionInfo]
[INFO] [1628686129.070334]: Setup publisher on imu [sensor_msgs/Imu]
[INFO] [1628686129.090531]: Setup publisher on cmd_vel_rc100 [geometry_msgs/Twist]
[INFO] [1628686129.122790]: Setup publisher on odom [nav_msgs/Odometry]
[INFO] [1628686129.144872]: Setup publisher on joint_states [sensor_msgs/JointState]
[INFO] [1628686129.165936]: Setup publisher on battery_state [sensor_msgs/BatteryState]
[INFO] [1628686129.187874]: Setup publisher on magnetic_field [sensor_msgs/MagneticField]
[INFO] [1628686129.236636]: Setup publisher on /tf [tf/tfMessage]
[INFO] [1628686129.263409]: Note: subscribe buffer size is 1024 bytes
[INFO] [1628686129.282927]: Setup subscriber on cmd_vel [geometry_msgs/Twist]
[INFO] [1628686129.311093]: Setup subscriber on sound [turtlebot3_msgs/Sound]
[INFO] [1628686129.339177]: Setup subscriber on motor_power [std_msgs/Bool]
[INFO] [1628686129.370952]: Setup subscriber on reset [std_msgs/Empty]
[INFO] [1628686132.142252]: Setup TF on Odometry [odom]
[INFO] [1628686132.152488]: Setup TF on IMU [imu_link]
[INFO] [1628686132.163884]: Setup TF on MagneticField [mag_link]
[INFO] [1628686132.175849]: Setup TF on JointState [base_link]
[INFO] [1628686132.190595]: --------------------------
[INFO] [1628686132.200521]: Connected to OpenCR board!
[INFO] [1628686132.210562]: This core(v1.2.6) is compatible with TB3 Waffle or Waffle Pi
[INFO] [1628686132.220935]: --------------------------
[INFO] [1628686132.231435]: Start Calibration of Gyro
[INFO] [1628686134.704229]: Calibration End