UnauthorizedError when trying to publish data to local MQTT topic using AWS IoT Greengrass V2 IPC

Hi, I'm playing around with Greengrass on a Raspberry Pi and I develop a simple component trying to get IPC working. I assume that is a permissions error but I see no differences between the examples and my code.

Here's the relevant bit of the recipe:

ComponentConfiguration:
  DefaultConfiguration:
    accessControl:
      aws.greengrass.ipc.pubsub:
        "example.greengrass.CpuTemperature:pubsub:1":
          policyDescription: Allows access to publish to all topics.
          operations:
            - aws.greengrass#PublishToTopic
          resources:
            - "*"

The code:

import time
import json

import awsiot.greengrasscoreipc.clientv2 as clientV2


TOPIC = "CPU/info"


def get_cpu_temp():
    temp_file = open("/sys/class/thermal/thermal_zone0/temp")
    cpu_temp = temp_file.read()
    temp_file.close()
    return float(cpu_temp) / 1000


def main():
    # Create an IPC client.
    ipc_client = clientV2.GreengrassCoreIPCClientV2()

    while True:
        cpu_temp = get_cpu_temp()
        print("CPU temperature: {:.2f} C".format(cpu_temp))

        # Create a payload.
        payload = json.dumps({"temperature": cpu_temp})

        # Publish the payload to AWS IoT Core.
        resp = ipc_client.publish_to_iot_core(
            topic_name=TOPIC, qos="1", payload=payload
        )

        print("successfully published message:", resp)

        time.sleep(1)  # sleep for 1 second


if __name__ == "__main__":
    main()

And the error:

2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. File "/usr/lib/python3.11/concurrent/futures/_base.py", line 456, in result. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. return self.__get_result(). {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. ^^^^^^^^^^^^^^^^^^^. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. File "/usr/lib/python3.11/concurrent/futures/_base.py", line 401, in __get_result. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. raise self._exception. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. File "/usr/local/lib/python3.11/dist-packages/awsiot/eventstreamrpc.py", line 723, in _on_continuation_message. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. raise shape. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.551Z [WARN] (Copier) example.greengrass.CpuTemperature: stderr. awsiot.greengrasscoreipc.model.UnauthorizedError. {scriptName=services.example.greengrass.CpuTemperature.lifecycle.Run, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}
2024-04-12T17:14:51.613Z [INFO] (Copier) example.greengrass.CpuTemperature: Run script exited. {exitCode=1, serviceName=example.greengrass.CpuTemperature, currentState=RUNNING}

In my research I found https://repost.aws/questions/QU-jdWszoHRByDe5g4esM8RQ/unauthorizederror-when-publishing-to-local-mqtt but it didn't work , maybe I did something wrong. What I did is: create a new revision of my deployment, modify the example.greengrass.CpuTemperature config and in the "Reset paths" I used [ "" ]