Netbackup SLP from VTL to Tape Library

Hi,

Made SLP configuration with backup local NDMP to VTL then duplicate it to Tape Library. While the VTL it directly attached to the filer but the Tape Library is attached to media server. The backup was working but the duplication has failed.

I find in the detail status error : 

Amount of data read (158711466) does not match the remaining fragment kbytes (838811648) for backup id pepkpcorpstr04_1434335767, copy 1, fragment 1 

EXITING with status 85 <----------

the same with i found in the log files.