The log shows an NDMP Filer ILLEGAL_ARGS response to MOVER_SET_WINDOW with a window length of 0. It has also been observed that the job also fails for another reason, namely that it fails because the MOVER_CONTINUE processing considers that the NDMP filer has not transitted to the ACTIVE state after the MOVER_CONTINUE and stops the job.
This issue is currently being investigated and is doucmented as Engineering fault NVG-4552
AFAIK this is going to be addressed in NetVault 8.2 / NDMP 7.1. Nils.
Please refer to the text above