stop-server.bat -p ../pid.txt -f command not working on windows 2016

Steps to reproduce:
1. Copy and extract cassandra binaries on windows 2016 machine
2. Start cassandra in non-legacy mode
3. Check pid of cassandra in task manager and compare it with in pid.txt
4. Now stop cassandra using command stop-server.bat -p ../pid.txt -f

Expected:
After executing <cassandra_installed_location>\bin:\> stop-server.bat -p ../pid.txt -f
cassandra process as in pid.txt should get killed.

Actual:
After executing above stop command, the cassandra process as in pid.txt gets killed but a new process gets created with new pid. Also the pid.txt not updated with new pid.
This new process should not get created.

Please comment on this issue if more details required.

I am using cassandra 3.11.2.

This issue impacting me much since because of this new process getting created my application uninstallation getting impacted.