Camera.record script showing up as unavailable

Setup
Home Assistant VM
Home Assistant 2022.7.5
Supervisor 2022.07.0
Operating System 8.2
Frontend 20220707.1 - latest

Folder called scripts
configuration.yaml line contains
script: !include_dir_merge_named scripts

script name: camera_recording.yaml

Based on the solution by @@bt04 given titled How does my automation know when a camera.record service on a stream is complete? I created the following script

camera_recording:
  description: Record from camera.  Wait until finished.  Save file name in latest_<source>
  mode: parallel
  max: 8 # 1 thread per camera. 8 cameras
  variables:
    - source: kitchen
      timestamp: "{{ as_timestamp(now()) }}"
      file_name: "{{ source }}-{{ timestamp | timestamp_custom('%d%m%Y-%H%M%S') }}.mp4"
      duration: 10    
    - source: hall
      timestamp: "{{ as_timestamp(now()) }}"
      file_name: "{{ source }}-{{ timestamp | timestamp_custom('%d%m%Y-%H%M%S') }}.mp4"
      duration: 10 
    ... 
  sequence:
    - service: camera.record
      data_template:
        entity_id: "camera.{{ source }}"
        filename: "/config/www/cameras/{{ file_name }}"
        duration: "{{ duration }}"
        lookback: 5
    - wait_for_trigger:
        - platform: event
          event_type: folder_watcher
          event_data:
            event_type: closed
            file: "{{ file_name }}"
      timeout:
        seconds: "{{ duration + 10 }}"
      continue_on_timeout: false
    - service: input_text.set_value
      data_template:
        entity_id: "input_text.latest_{{ source }}"
        value: "{{ file_name }}"
    - service: notify.telegram
      data:
        title: "Camera detected motion.  What is it?"
        message: "Motion Detected!"
        data:
          video:
            - file: "/config/www/cameras/{{ file_name }}"
              caption: Camera Motion

On reloading the script the script (script.camera.record) shows up as unavailable.
Other scripts in the folder work

The automation attempts to look for script.camera.record but obviously cannot find it.

I’ve checked formatting and it appears to be in order.

Is what I’m attempting to do even possible or is there a more elegant way to do what I want to achieve.

Best regards.