Duplicate regularly fails to find backup sets
I've been having this issue ever since upgrading to Backup Exec 2012 with my duplicate jobs. When the duplicate job runs, about a thrid of the time I get the error message:
Duplicate -- The job failed with the following error: The requested source duplicate backup sets catalog record could not be found. Perhaps the media containing the source backup sets was previously deleted.
I know that my full & incremental jobs have successfully been duplicated before being deleted, so I don't understand what's causing this message. I can fix this by deleting the duplicate job and recreating it, but then the error message comes back in about a week. I have about 15 servers I'm backing up, and about 5 of them experience this issue.
Because Backup Exec 2012 has no way of viewing job selections for duplicate jobs I'm having a very hard time trying to figure out what's going on.
Can anyone advise me on how to troubleshoot this?!