To create a Duplicate job to duplicate an existing Oracle backup job from Job history. The duplicate job is successful. But duplicated size is 0 KB. No data is duplicated.
This issue is fixed in Backup Exec 2012 Service Pack 2.
Backup Exec 2012 revision 1798 Service Pack 2:
Backup Exec 2012 SP1a
Windows 2008R2 x64 with SP1