Horizon REST API inconsistent with Horizon RDS agent status

[Mickeybyte]

Hi, 

I'm playing around with the Horizon REST API and came to the following issue: 

As a test, I disabled the VMware PCoIP gateway service on one of my RDS hosts. This results in the RDS Host showing status "Protocol Failure" in the Horizon Admin console. When I lookup the status of the RDS servers using the REST API (<url>/rest/rds-servers) I get an RDS status of "ERROR" and an agent status of "UNKOWN". 

Status in Horizon Admin console: 

JSON result from REST API: 

{
    "id":  "b9f4f2c7-a379-4855-9df9-53c624b13aba",
    "name":  "RDSH-3",
    "status":  "ERROR",
    "enabled":  true,
    "load_preference":  "LIGHT",
    "load_index":  0,
    "session_count":  0,
    "farm_id":  "2e5f72a6-c327-4803-a2fe-73bca28055ec",
    "details":  {
                    "operating_system":  "WINDOWS_SERVER_2016_OR_ABOVE",
                    "state":  "UNKNOWN",
                    "agent_version":  "8.2.0",
                    "agent_build":  "17771933",
                    "max_sessions_count_configured":  2
                }
}

I would have expected the agent status to be "AGENT_ERR_PROTOCOL_FAILURE" according to VMware Horizon Server API - VMware API Explorer - VMware {code}?

Am I wrong here or is this a bug in the REST API?