Please follow the below steps to perform re-alignment of the network interfaces on the vSRX appliance this can happen if you have been using a release older than D62

How to recover.

1.Shutdown node0 and node1

2. Remove all NICs

3. Power up node0 and node1 , when it reaches config loading power off node0 and node1

4. Add 3 NIC to node0 and node 1 and power on the nodes

5.Check the cluster status , node0 and node1 should see each other and fabric link should be up and working

If you require more network interfaces to be added to your appliance please follow the KB in the link below

http://www.juniper.net/techpubs/en_US/vsrx15.1×49/topics/task/configuration/security-vsrx-vmware-adding-interfaces.html#jd0e206

If you are making changes to network firewalls ensure that you have a backup and a revert plan as a pro-caution