vCAC 6.0.1 VM Multi networkcard problem

Hi all

I have some question to ask abou vCAC 6.0.1 multi network profile. I want my vm have 3 vnic and only vnic1 have DNS. My VM have 3 vnic each vnic has own subnet and ip address (picture 4) example

vnic1     172.19.206.xx    for service        --> Assign DNS

vnic2    10.7.214.xx    for management    --> No DNS

vnic3    10.96.138.xx    for backup           --> No DNS

each vnic have own static ip pool in network profile (picture 15).I already create Researvation as show (picture 14)

and create blueprint as show (picture 1) in my blueprint i use custom properties (picture 2 and 3). When i provisioing machine only the  vnic3 get DNS setting

but i want only vnic1 get DNS config i try to do this many many time but i stil can't assign DNS to vnic1

Thank you