Recursively include automation yaml files not working

My configuration.yaml works fine with everything lumped into one single (fairly large) automations.yaml file and the old classic default entry of:

automation: !include automations.yaml

I can not successfully however move everything in a tree like:

/config/configuration.yaml
/config/automations/
/config/automations/garage/garage_light_forgot_off.yaml
/config/automations/house/automation.yaml
...

Both the entries (in the configuration.yaml) like so:

# automation: !include automations.yaml
automation: !include_dir_merge_list automations/

and…

# automation: !include automations.yaml
automation: !include_dir_list automations/

produce the error (when checking the configuration):

Error loading /etc/homeassistant/configuration.yaml: sequence entries are not allowed here
  in "/etc/homeassistant/automations/garage/garage_light_forgot_off.yaml", line 5, column 17

Based on official docs and Awesome HA reference here altering such a simple config (that works when it’s in the automation.yaml file as:

# garage_light_forgot_off.yaml
# Simply handle case where one forgets to turn off the garage light
# Automatically turn it off if it's been on for 1.5hrs
# 
alias: [Garage] - Forgetful Automatic Light Off
trigger:
  - platform: state
    entity_id: switch.interior_garage_light
    to: 'on'
    for: '01:30:00'

action:
  - service: switch.turn_off
    data_template:
      entity_id: "{{ trigger.entity_id }}"

and

# garage_light_forgot_off.yaml
# Simply handle case where one forgets to turn off the garage light
# Automatically turn it off if it's been on for 1.5hrs
# 
- alias: [Garage] - Forgetful Automatic Light Off
  trigger:
    - platform: state
      entity_id: switch.interior_garage_light
      to: 'on'
      for: '01:30:00'

  action:
    - service: switch.turn_off
      data_template:
        entity_id: "{{ trigger.entity_id }}"

What am i doing wrong? I get the same error in both layouts with either or combination of !include_dir_list or !include_dir_merge_list. I’m currently using HASS v0.117.1 if that makes a difference?

Any advice would be so much appreciated!

Sorry everyone; just ignore this. I got it to work using !include_dir_merge_list in my configuration.yaml file. For those who have the same problem; just stick your alias in quotes.

With respect to my issue above; this works fine:

- alias: "[Garage] - Forgetful Automatic Light Off"
  trigger:
    - platform: state
      entity_id: switch.interior_garage_light
      to: 'on'
      for: '01:30:00'

  action:
    - service: switch.turn_off
      data_template:
        entity_id: "{{ trigger.entity_id }}"