After OS patch we tried restarting the CARA NES but its not starting and permissions keep changing to root across logs and catalina.PID
Services are starting with root.
Usually, the reason why those files get changed to root after a reboot is because the server was reboot without the Nolio Server is not configured with an appropriate RUN_AS_USER value (as described in the product docs below). When a server is reboot without these settings, Nolio is started by root because Nolio creates startup scripts in /etc/init.d and the appropriate rc.d directories (and services in /etc/systemd/system). During a reboot, root is the user that executes those startup scripts.
Documentation outlining setup/install for non-root users:
Release : 6.x
Component : CA RELEASE AUTOMATION EXECUTION SERVER
To resolve the problem you will need to: