GET /api/v2/analytics/queues/realtime returning empty queueStats

NICE CXone API & Integrations
1

Trying to pull live queue stats like waiting and agentsAvailable using GET /api/v2/analytics/queues/realtime. The request returns 200 OK but the queueStats array is empty. I’m passing from and to as ISO-8601 strings with a 10-second window. Here’s the request header setup:

val url = "https://${baseUrl}/api/v2/analytics/queues/realtime"
val params = listOf(
 "from" to now.minusSeconds(10).toString(),
 "to" to now.toString(),
 "intervalSize" to "10s"
)

Docs say this should work for real-time data. Am I missing a specific filter or is this endpoint actually just for historical aggregates?