Yes, it is in the list:
Host Uplinks
---- -------
pbnesxt22.xxxx.xxx 40/41
pbnesxt21.xxxx.xxx 70/71
so 21 is the host I am manipulating. If I try and add an uplink, this is what I get:
I believe there is a disconnect between the UUID of the old host and the UUID of the new host. They both have the same name. It's kind of hard to articulate what the situation is. Hopefully I am making sense.