What does "state attribute is queued" mean for airflow 3?

I try to install the new airflow 3 with docker on a VM with this conf:

x-airflow-common: &airflow-common
  image: ${AIRFLOW_IMAGE}
  restart: unless-stopped
  env_file: .env
  environment:
    # ---- Airflow (principales) ----
    AIRFLOW__DATABASE__SQL_ALCHEMY_CONN: ${AIRFLOW__DATABASE__SQL_ALCHEMY_CONN}
    AIRFLOW__SDK__API_BASE_URL: ${AIRFLOW__SDK__API_BASE_URL}
    AIRFLOW__CORE__EXECUTOR: ${AIRFLOW__CORE__EXECUTOR}
    AIRFLOW__CORE__FERNET_KEY: ${AIRFLOW__CORE__FERNET_KEY}
    AIRFLOW__CORE__LOAD_EXAMPLES: ${AIRFLOW__CORE__LOAD_EXAMPLES}
    AIRFLOW__CORE__DEFAULT_TIMEZONE: ${AIRFLOW__CORE__DEFAULT_TIMEZONE}
    AIRFLOW__WEBSERVER__BASE_URL: ${AIRFLOW__WEBSERVER__BASE_URL}
    AIRFLOW__WEBSERVER__DEFAULT_UI_TIMEZONE: ${AIRFLOW__WEBSERVER__DEFAULT_UI_TIMEZONE}
    AIRFLOW__DATABASE__SQL_ALCHEMY_ENGINE_OPTIONS: ${AIRFLOW__DATABASE__SQL_ALCHEMY_ENGINE_OPTIONS}
    AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_USERS: ${AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_USERS}
    AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_PASSWORDS_FILE: ${AIRFLOW__CORE__SIMPLE_AUTH_MANAGER_PASSWORDS_FILE}

    # ---- Réseau / Proxy : neutraliser tout proxy pour les appels internes ----
    NO_PROXY: "localhost,127.0.0.1,web,af_web,airflow.local,*.local"
    no_proxy: "localhost,127.0.0.1,web,af_web,airflow.local,*.local"
    HTTP_PROXY: ""
    HTTPS_PROXY: ""
    http_proxy: ""
    https_proxy: ""
  user: "${AIRFLOW_UID}:${AIRFLOW_GID}"
  volumes:
    - ./dags:/opt/airflow/dags
    - ./logs:/opt/airflow/logs
    - ./simple_auth_passwords.json:/opt/airflow/simple_auth_passwords.json
  networks:
    airflow_net: {}

services:
  # === API + UI Airflow ===
  web:
    <<: *airflow-common
    container_name: af_web
    ports:
      - "8080:8080"
    command: >
      bash -lc "
        airflow db migrate &&
        airflow api-server --host 0.0.0.0 --port 8080 --proxy-headers --workers 4
      "
    healthcheck:
      test: ["CMD", "bash", "-lc", "curl -sf http://localhost:8080/api/v2/monitor/health | grep -q 'healthy'"]
      interval: 10s
      timeout: 5s
      retries: 12
    networks:
      airflow_net:
        aliases: [web, af_web]

  # === Scheduler ===
  scheduler:
    <<: *airflow-common
    container_name: af_scheduler
    command: >
      bash -lc "
        export NO_PROXY='localhost,127.0.0.1,web,af_web,airflow.local,*.local' &&
        export no_proxy='$NO_PROXY' &&
        export HTTP_PROXY= HTTPS_PROXY= http_proxy= https_proxy= &&
        export AIRFLOW__SDK__API_BASE_URL='http://web:8080' &&
        airflow db migrate &&
        airflow scheduler
      "
    depends_on:
      web:
        condition: service_healthy
    healthcheck:
      test: ["CMD", "airflow", "db", "check"]
      interval: 20s
      timeout: 5s
      retries: 10

  # === DAG Processor (parse/serialize des DAGs) ===
  dag_processor:
    <<: *airflow-common
    container_name: af_dagproc
    command: >
      bash -lc "
        export NO_PROXY='localhost,127.0.0.1,web,af_web,airflow.local,*.local' &&
        export no_proxy='$NO_PROXY' &&
        export HTTP_PROXY= HTTPS_PROXY= http_proxy= https_proxy= &&
        export AIRFLOW__SDK__API_BASE_URL='http://web:8080' &&
        airflow dag-processor
      "
    depends_on:
      web:
        condition: service_healthy
      scheduler:
        condition: service_started

  # === Triggerer (capteurs asynchrones) ===
  triggerer:
    <<: *airflow-common
    container_name: af_triggerer
    command: >
      bash -lc "
        export NO_PROXY='localhost,127.0.0.1,web,af_web,airflow.local,*.local' &&
        export no_proxy='$NO_PROXY' &&
        export HTTP_PROXY= HTTPS_PROXY= http_proxy= https_proxy= &&
        export AIRFLOW__SDK__API_BASE_URL='http://web:8080' &&
        airflow triggerer
      "
    depends_on:
      web:
        condition: service_healthy
      scheduler:
        condition: service_started

networks:
  airflow_net:
    driver: bridge
  dock

I have separated each service as the documentation.

Now every time I try to run a DAG I get this error:

Finished with state failed, but the task instance's state attribute is queued.

Looking at the log of the scheduler I got an error:

httpx.ConnectError: [Errno 111] Connection refused

From my understanding the schedule in v3 needs to connect to the web service from the API.

I did airflow config get-value sdk api_base_url and I got http://web:8080, which seems ok to me.

What's wrong here?