Shared Insight Cache 12.1.2 (VShield) - Security Virtual Appliance Status "Unknown"

I have deployed a new Symantec Endpoint Manager Server 12.1.2 and have deployed "Security Virtual Appliances" to each VMWare host in our environment.  Prior to deploying the SVAs, I built a VShield server in our VMWare 5 environment.  I enabled SHARED INSIGHT CACHE USING VSHIELD in the policies on the SEP Manager for the appropriate servers.  I then deployed the SEP 12.1.2 client to 4 servers that have the VMWARE TOOLS client installed.   When I check the SECURITY VIRTUAL APPLIANCE column for those servers in the SEPM, the status shows as UNKNOWN.  I have rebooted the SVAs and the servers but nothing changes the status.  Has anyone else had this experience or have any insight into what's happening with this?

Thanks.