Hello

I've been working on ROS kinetic for a month in order create a map using only LIDAR, no odometer with hector slam. when I start the Rplidar node and hector slam node, it starts mapping a, but after about 2(two) minutes, the rplidar laser scans stops updating the map on RVIZ, what could be wrong? COuld it be the Lidar or my algorithm?

I need assistance asap, anyone please?