Was the original poster able to resolve this issue? I am now encountering the same error with a client. I have recreated the replicas, and have tried importing changes manually via geodatabase and xml without success.
Environment details:
Parent GDB: ArcGIS 10.1 / SDE Standard Enterprise / SQL Server Standard 2008 R2
Child GDB: ArcGIS 10.2 / SDE Personal / SQL Server Express 2008 R2
One way replica parent > child.