atlas_start.py- the Atlas server won’t restart after improper shutdown

Steps to reproduce
1. Open a Windows/terminal/shell and start the Atlas server with “atlas_start.py” script
2. Log in to your Atlas server http://localhost:21000/ to make sure that you can connect
3. Close the Windows/terminal/shell where the Atlas server process started –step1
Or just kill the process - the process id can be found in a file called “atlas.pid” in the logs directory (this file is created by the “atlas_start.py” script
4. Try to login to your Atlas server again and a “Unable to connect” message will pop up
5. From a command prompt Windows/ Terminal/Shell start the server (atlas_start.py)
6. A message “atlas.pid already exists, exiting” will pop up in the screen and the server will not start

Expected Result
The server should start since it has been shut down
Actual:
The server can not start

If the server is stopped using “atlas_stop.py” , the server restart after running "atlas_start.py" with no issue.
Since the server has not been stopped with “atlas_stop.py” that kill the
process, and delete the “atlas.pid” file, the script “atlas_start.py” will not start the server.
The turnaround is to delete the “atlas.pid” file in the logs directory but it is not always obvious, and user friendly!!