AD 2016 redircmp and redirusr not working

Hello, I am working on a domain that was migrated from a 2011 SBS to 2016 functional level. The SBS server has been long gone and decommissioned. The environment has two domain controllers running Windows Server 2019 Standard. The Functional Domain level is set to 2016. I have verified that both domain controllers are online and running. DC01 is the Schema Master, Domain naming master, PDC, Infrastructure Master. Currently the OU structure has the old SBS "MyBusiness" OU structure. I am trying to eliminate the SBS OU structures and am attempting to set the default OUs for computers to OU=Computers,DC={localdomain},DC=local and users to OU=Users,DC={localdomain},DC=local. When I run either command I get the following error. "Error, unable to modify the wellKnownObjects attribute. Verify that the domain functional level of the domain is at least Windows Server 2003: Unwilling To Perform Redirection was NOT successful." I have checked the registry entry, HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ Tcpip \ Parameters -> REG_SZ “Domain”, and it is correct on both servers. I cannot seem to find a solution searching on the web. Can anyone provide some insight?