Replicated images do not have retention lock after the lockdown mode is changed from normal to any other mode

If the lockdown mode of the NetBackup Flex Scale cluster was configured as normal mode (not enterprise or compliance), and you switch the mode from 'normal' to 'enterprise' or 'compliance', all the new backup images should be protected by WORM retention locks. But an exception occurs and all the new images replicated to the cluster still do not have the retention lock. (4050463)

Workaround:

Login to the primary server and restart the nbstserv service.