Customize not working?

Configuration
1

Hi All, on the latest HassIO here, and trying to customise some things, but i keep seeing error

It seems that your configuration.yaml doesn't properly include customize.yaml.
Changes made here are written in it, but will not be applied after a configuration reload unless the include is in place.

However, i believe i do have it referenced, and the file does exist, albeit empty

# HomeAssistant
homeassistant:
  customize: !include includes/customize.yaml

Thanks in advance

2 
homeassistant:
  customize: !include customize.yaml
3

but mine sits within the /includes folder?

4

You did set proper access rights on the includes folder ?

5

Then it won’t work with the ui editor.