After upgrading there are rhel7 packages from a previous install (16.0 RU2 and below) are still installed.
Rhel 8/9
DLP 16.x , 25.1
when removing the packages marked el7 the config files for the services will be removed.
if you run "rpm -ql package" you can see all the files that package will install or remove.
Removing the el7 without affecting the 25.1 install and configuration run the following:
rpm -e --nodeps --justdb --noscripts $(rpm -qa | grep -i symantec | grep -i el7)
see more information on handling these packages.
https://techdocs.broadcom.com/us/en/symantec-security-software/information-security/data-loss-prevention/25-1/maintaining-the-dlp-system/uninstalling-data-loss-prevention-components/uninstalling-a-server/uninstalling-a-server-from-a-linux-system.html