Synchronizing Replicate Files

[CassandraB]

I've gone through syncronizing 3 replica files successfully to the Master file, in attempting to synchronizing a second time (two weeks later) there is one Replicate file that will not synch with the master file. It SAYS that the process was successful but in going into the master file the updates are not there. This is driving me crazy for I have done nothing differently from the first time. Any ideas? I've tried adding a couple of 'fake' records and they synch but the 22 from last week will not!! Forever grateful for any help.