Why does this config cause a 403 Forbidden error when scaling concurrent WebSocket connections? We are running a JMeter script with 200 virtual users connecting to the Genesys Cloud WebRTC softphone. The v2/interaction/websocket endpoint works fine at low volume but fails under load. The Architect flow handles the routing, but the client-side SDK version 1.2.4 throws a MediaConnectionFailed exception. Is there a hidden rate limit on the media.region endpoint?