When onboarding VMs that have a network in NSX-T these vms show up in the vSphere network not the NSX-T network in vRA.
Aria Automation 8.18.1
The reason why the NSX-T Network is not allocated to the compute machine during onboarding is because the sub-network of the VC subnet i.e.
/resources/sub-networks/xxx
has missing "__opaqueNetworkId" in the custom_properties for the table subnet_state.
Contact Broadcom support to verify that this is the issue and they will provide next steps to resolve the issue