Kinesis Video Service does not return ICE servers in GetIceServerConfig()

Hello! I'm using Golang SDK. I'm able to get channel info and WSS/HTTPS endpoints for a signaling channel. However, GetIceServerConfig() always returns an empty list regardless an user or channel I'm trying to request it against. clientId param does not change anything.... Any ideas why? I saw multiple similar unanswered questions for the same call. Yes, I know that in CLI and JS API you have to get endpoints first. Golang SDK apparently does not need to do that, but this method is not working in any case.

Sample code:

	svcObject := kvc.New(mySession, aws.NewConfig().WithRegion("us-west-2"))
	svcTurn := kvc.ServiceTurn
	clientId := "kinesis-client"
	iceServerConfigIn := kvc.GetIceServerConfigInput{
		ChannelARN: &channelARN,
		Service:    &svcTurn,
		ClientId:   &clientId,
	}
	iceServerConfigOut, err := svcObject.GetIceServerConfig(&iceServerConfigIn)
	if err != nil {
		fmt.Println("Could not obtain ICE Server config")
		return ChannelInfo{}, err
	}