In the vCenter linking tab of the SDDC grouping, vCenters of the SDDC show as 'Failed" with the following error:
Error: 500 Internal Server Error: "{"type":"com.vmware.vapi.std.
{"args":["com.vmware.vapi.std.
,{"args":["Service Unavailable: Session count exceeded"],"default_message":"
VMware is aware of this issue and is working on increasing the max session limit per user in a future release of HLM. Please raise a Support Request with VMware to have the HVC services restarted in the SDDCs that are having their vCenters linked.