Oracle Plugin Backup "Cannot validate the selected NetVault Target Set: ??" for target set name with Chinese characters (4038728)

Environment: Plugin-in for Oracle 10.0.5.3

1. Plug-in for Oracle backups completed with Job Status: "Backup Completed with warnings" with job logs showing below 

Starting Control File and SPFILE Autobackup at 21-JAN-16
released channel: c1
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of Control File and SPFILE Autobackup command on c1 channel at 01/21/2016 11:23:...
ORA-19506: failed to create sequential file, name="c-1428641758-20160121-ff", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: non RMAN, but media manager or vendor specific failure, error text:
Cannot validate the selected NetVault Target Set: ??

2. Triggering backup through RMAN CLI without specifically setting NV_TARGET_SET will return the same error as above.