Broadlink base64 codes size limit?

Configuration
1

Is there a maximum size for the base64 code you can send to a Broadlink device? For example, I have a Broadlink RM4 Pro. If I use the example given at Broadlink - Home Assistant, it works just fine.

# Example configuration.yaml entry
script:
  turn_on_tv:
    sequence:
      - service: remote.send_command
        target:
          entity_id: remote.bedroom
        data:
          command: b64:JgAcAB0dHB44HhweGx4cHR06HB0cHhwdHB8bHhwADQUAAAAAAAAAAAAAAAA=

But if change it to a longer code (this code is for a Luminera LED candle) it fails to send. There are no error messages that I can see.

# Example configuration.yaml entry
script:
  turn_on_tv:
    sequence:
      - service: remote.send_command
        target:
          entity_id: remote.bedroom
        data:
          command:   b64:AAAAbQAiAAIBVwCsABYAFgAWABYAFgAWABYAFgAWABYAFgAWABYAFgAWABYAFgA/ABYAPwAWAD8AFgA/ABYAPwAWAD8AFgA/ABYAPwAWAD8AFgAWABYAPwAWABYAFgA/ABYAFgAWABYAFgAWABYAFgAWAD8AFgAWABYAPwAWABYAFgA/ABYAPwAWAD8AFgXkAVcAVQAWDlQ=