Environment details: Ubuntu 16.04, ROS-Kinetic, Gazebo7, Autoware 1.12

I have launched the Gazebo world from Autoware 1.12 workspace and pulished non zero commands in /cmdvel from terminal. What I have observed is vehicle is moving. And after somtime, I freshly restart the Gazebo for another run, vehicle is not moving. Tried relaunching the world again by killing the old gazebo processes. Vehicle is not moving with non zero cmdvel.

Command used Autoware ros workspace to launch gazebo : roslaunch vehiclegazebosimulationlauncher gazebolauncher.launch