Modified records not synchronizing, no errors given

Hi All,

I have a replica farm on a server managed with Replication Manager 4.0.
This 
farm direct syncs to a few unmanaged replicas on our LAN.

One of the unmanaged replicas on the LAN has updates to existing records
in 
a table that aren't being synchronized to the server farm and other 
replicas.

There are no errors or conflicts in any of the database back ends, and
even 
after compact/repair on all database back ends, the modified records
aren't 
being replicated to the server farm.

Any ideas?

Thanks,

Mark