Can anyone explain why the CXone Statistics API rejects my real-time queue observation query with a 400 error? I am using the standard client_credentials flow and hitting GET /api/v2/analytics/queues/realtime?interval=PT1M&metrics=waitingCount,agentsAvailable with a valid divisionId filter, but the response body indicates an invalid metric combination. The documentation implies these metrics are standard for real-time intervals, yet the error payload suggests waitingCount is unsupported in this specific endpoint version. Is there a specific query parameter format required for real-time aggregate metrics that differs from historical reporting?