vCNS integration with vCAC 6.1

I'm getting errors trying to setup vCNS 5.5.3 with my vCAC 6.1 setup.

These are both fresh installs, but I'm receiving the following errors in vCAC trying to do a data collection.

Workflow 'vSphereVCNSInventory' failed with the following exception: Could not reach vCenter Orchestrator endpoint {0}. Trying the next highest priority endpoint.

I found this KB Article relating to this error, noting an issue with data collection if you're using a load balancer in NSX which I am not.

VMware KB: Inventory data collection in VMware vCloud Networking and Security fails with the error: Workflow 'vSpher…

According to the support matrix, these are supported.

https://www.vmware.com/pdf/vcloud-automation-center-61-support-matrix.pdf

Is anyone else having a similar error?