Powerstore 7000T & 9200T Clustering

We're having a nightmare of a time adding a newly purchased 7000T & 9200T to an existing 7000T cluster.   We are running ACI, and our MGMT & data ports are in two different tenants inside ACI.  

Both devices show up as discoverable, however when clicking to add, it says no route to host when selecting them to add to cluster.

We're working through Dell support and have talked with cisco.   The data ports are all on the same leaf switch and are layer2 adjacent.   We've been told they should be able to communicate via ipv6 to each other, and the vlan tagging is done on the switch side, so native vlan is being tagged properly. 

Dell blames networking, networking says all should work.    Hoping someone else has been down this path.

Running 3.2.0.1 with hotfix (all nodes have an enclosure added).

Anyone worked with ACI and Pstore clustering got any tips?