Architect Flow Timeout on High Concurrency Agent Script

408 Request Timeout

Ran JMeter test with 500 concurrent sessions hitting Architect flow script-handler-v2. Flow uses Wait action for 30s then Play prompt. Under load, 60% of requests fail with 408. Server logs show no errors, just dropped connections. Is there a limit on concurrent WebSocket connections for script execution? Using us-east-1. Need to know if this is a config issue or platform cap.