Was attempting to upgrade NSX from 2.1 to 2.2, but one of the controller upgrades failed and now I can't proceed. When I attempt to retry, I get the following error "Upgrade aborted on 4c4ef84c-466c-43ec-99c0-a7fd74371c1a after sanity_checks as upgrade on other nodes has failed". When I check out the problem controller in the overview, manager connectivity is down and cluster connectivity is unknown. I've tried detaching the problem controller from the control-cluster and from the manager, but both options fail. Not sure where to go from here. I don't mind redeploying that controller, but I can't even get it removed so I can proceed with the rest of the update at this point.
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