core: Google assistant says that it cannot start Logitech Harmony device after it has started it

The problem

I have configured the Logitech Harmony Hub sensor as media_player to be used in the Google Assistant integration.

If I ask my Google Home to start the Harmony, it does it perfectly, but after that, Google says that it has not been able to communicate with Home Assistant.

The power on of the default activity is slow, maybe 12-15 seconds so maybe is some kind of timeout of the Google Assistant waiting for a response of the Harmony?

I installed the Harmony Hub using the flow integration, and added it as universal media_player with the sample of the documentation.

Environment

• Home Assistant Core release with the issue: 0.114.4
• Last working Home Assistant Core release (if known):
• Operating environment (OS/Container/Supervised/Core): Home Assistant OS
• Integration causing this issue: Logitech Harmony Hub, Universal Media Player and Google Assistant
• Link to integration documentation on our website: https://www.home-assistant.io/integrations/universal/ , https://www.home-assistant.io/integrations/harmony/ and https://www.home-assistant.io/integrations/google_assistant/

Problem-relevant configuration.yaml

google:

    media_player.harmony_hub_comedor:
      name: Harmony
      expose: true
      room: Comedor
      aliases:
        - Mando comedor
        - Remoto
        - Multimedia

media_player:

  - platform: universal
    name: Harmony Hub Comedor
    attributes:
      state: remote.harmony_hub_comedor
      source_list: remote.harmony_hub_comedor|activity_list
      source: remote.harmony_hub_comedor|current_activity
    commands:
      turn_on:
        service: remote.turn_on
        entity_id: remote.harmony_hub_comedor
      turn_off:
        service: remote.turn_off
        entity_id: remote.harmony_hub_comedor
      volume_up:
        service: remote.send_command
        entity_id: remote.harmony_hub_comedor
        data:
          device: 70778873
          command: VolumeUp
      volume_down:
        service: remote.send_command
        entity_id: remote.harmony_hub_comedor
        data:
          device: 70778873
          command: VolumeDown
      select_source:
        service: remote.turn_on
        data_template:
          entity_id: remote.harmony_hub_comedor
          activity: '{{ source }}'

Traceback/Error logs

None

Additional information

None