NetWoker 9.1.1.3 Isilon Multi-Streaming NDMP backups failing with Broken Pipe error

NetWoker 9.1.1.3 silon Multi-Streaming NDMP backups failing with Broken Pipe error
NDMP data backup succeeds but history index backup fails at the end with Broken Pipe error
History file backup fails, so NetWorker removes all successful NDMP data backup
Multi-Streaming is set via Client Parallesim and Action/group Parallelism values to 8.
Changing Action/group parallelism to 4 does not take effect and does not fix the issue (as per NetWorker NDMP user Guide Action/group parallelism should override Client Parallelism)

Error in policy logs:

<client:folder> level=full, 1229 GB 10:01:45  12420 files
completed savetime=1505323587
nsrndmp_save: Save session closed with NW server successfully
42917:nsrndmp_save: Processing NDMP File History...
42918:nsrndmp_save: <client:folder> Processing NDMP File History completed Successfully on '<storage node>' in 00:00:00 Hours
42920:nsrndmp_save: browsable savetime=1505323587
42697:nsrndmp_save: Leaving /nsr/tmp/FileIndex297364032/fhfile.0
42927:nsrndmp_save: Successfully done
76677:nsrdsa_save: RPC send operation failed; peer = 127.0.0.1:9219, errno = Broken pipe
76677:nsrdsa_save: RPC send operation failed; peer = 127.0.0.1:9219, errno = Broken pipe
76677:nsrdsa_save: RPC send operation failed; peer = 127.0.0.1:8338, errno = Broken pipe

The Client Application Information HIST parameter is set to HIST=Y or HIST=F.

To fix this issue, change the HIST parameter in the Application Information field of the client resource to HIST=D (multi-streaming).
Here is from NetWorker NDMP User Guide 9.1:

Table 29 Isilon Application Information variables:
 HIST=F/D             Set this variable to F for Checkpoint Restart backups, to ensure the use of path based file history.
                                  Set this variable to D to enable concurrent streaming.