@Vercel Organisation ID: 58ca3d2e-e725-47d3-bca6-f2957140fdc7 Assistant ID: 7cc72a40-8acb-4f84-9c1c-da3cd3a11c66 Mode: Assistant (not Workflow) Model: openai:gpt-4o Concurrency limit configured: 10 The issue occurs both when starting a call from the dashboard (“Talk to agent”) and when starting a call via the API. At the time of the errors, Observe → Call Logs showed no active sessions, and Twilio also showed no active calls on the number. The response body includes: { "error": "over_concurrency", "message": "Maximum concurrent sessions reached" }