Backup Exec 2012 causing dfs replication to stop

Hello,

We're using backup exec 2012 SP2  on a dfs cluster running win2012.  The backups are running ok using the shadow copies.  But after the

backups are done, we find that the dfs replication on that volume has stalled.  This creates alot of backlog files and then we have to re-create the replication

on the dfs clusters to correct.

We're checking if we can run the backup jobs and dfs replication at separate, but wondering if anyone has another solution?  thanks.