Enabling/ disabling Lovelace minimalist custom button cards

Configuration Frontend
1

One a dashboard, I have some lovelace minimalist custom button cards associated with input_booleans. I want some of the buttons to be enabled or disabled based upon the state of a specific button.

Here is a code extract:

button_card_templates: !include_dir_merge_named "../../custom_components/ui_lovelace_minimalist/__ui_minimalist__/ulm_templates/"

views:
  - title: Control
    type: custom:grid-layout
    layout:
      margin: 0
      grid-template-columns: repeat(auto-fit, minmax(300px, 1fr))
      grid-template-rows: auto
    cards:
      - type: "custom:button-card"
        template: card_input_boolean
        entity: input_boolean.core_house
        variables:
          ulm_card_input_boolean_name: Core House

      - type: "custom:button-card"
        template: card_input_boolean
        entity: input_boolean.rear_middle_floor_bedroom
        variables:
          ulm_card_input_boolean_name: Middle Floor Bedroom
        state:
          - value: 'off'
            entity: input_boolean.core_house
            styles:
              card:
                - pointer-events: none
                - opacity: 0.5
          - value: 'on'
            entity: input_boolean.core_house
            styles:
              card:
                - pointer-events: auto
                - opacity: 1

So I want the rear_middle_floor_bedroom button to only be enabled if the core_house input_boolean is ‘on’

The above code correctly disables the button but it never gets enabled. I have also tried setting the style to the on configuration and then just overriding the off CSS syling but same result. Refreshing the page makes no difference