we have 2 hosts, connection server on each host with their own desktop pools. It's only happening on one server, the connection server was on Horizon 7.3 and we did an in-place upgrade to Horizon 7.6 following the steps in the vmware documentation of upgrading the connection server first then the agent on the golden image. On the golden image do we have to remove the old agent first or we can just install the new agent over the old one to upgrade