Environment: 2-NW5.0sp6a servers running DS 7.62c, 1-NW5.1sp7 server
running DS8.85c, 2-NW6.5sp2 servers one on DS10551.13 and the other

When I run a dsrepair full unattended repair on the 2 NW5.0sp6a servers,
I get this error:

WARNING - Remote base class for replica root is: Organizational Unit
- Local base class for replica root is: Unknown

The 2 NW6.5sp2 servers were recently migrated from 2 NW5.0sp6a servers.
This error was not present before the migration.

Can't find anything in the knowledgebase. Any suggestions?