GPT realtime fails to respond with function call response

{
  "id": "log-28",
  "level": 30,
  "time": 1765480937089,
  "timestamp": 1765480937089000000,
  "severityText": "INFO",
  "severityNumber": 9,
  "body": "Tool calls finished",
  "attributes": {
    "category": "tool",
    "callId": "019b0edc-fea5-7ff2-a144-23bde81ed2db",
    "orgId": "9fc10dfb-0f59-4ced-8157-345511dd806a",
    "runDurationMs": 5272,
    "totalResults": 1,
    "errorsCount": 0,
    "results": [
      {
        "name": "get_response_2",
        "toolCallId": "call_Dujyv9wGmxRLsp1U",
        "type": "function",
        "serverUrl": "https://trustful-uncherishing-braiden.ngrok-free.dev",
        "result": "Our dentures are made of high quality materials.",
        "metadata": {}
      }
    ]
  }
}

{
  "id": "log-28",
  "level": 30,
  "time": 1765480937089,
  "timestamp": 1765480937089000000,
  "severityText": "INFO",
  "severityNumber": 9,
  "body": "Tool calls finished",
  "attributes": {
    "category": "tool",
    "callId": "019b0edc-fea5-7ff2-a144-23bde81ed2db",
    "orgId": "9fc10dfb-0f59-4ced-8157-345511dd806a",
    "runDurationMs": 5272,
    "totalResults": 1,
    "errorsCount": 0,
    "results": [
      {
        "name": "get_response_2",
        "toolCallId": "call_Dujyv9wGmxRLsp1U",
        "type": "function",
        "serverUrl": "https://trustful-uncherishing-braiden.ngrok-free.dev",
        "result": "Our dentures are made of high quality materials.",
        "metadata": {}
      }
    ]
  }
}