Wait Template not working with Input Variable

Im Trying to turn the Climate back off when both Input Sensors are closed again (State = Off) already checked the State in the Debug. the problem seems to be the Wait Template, it doesnt seenm to reference to the Frontend Input Sensors correctly

blueprint:
  name: Window open, climate off after a defined time
  description: An automation that turns off a running your climate device for exmple
    a heater or an air conditioning if a window sensor is open for a specific time.
    It waits until the window is closed again in order to turn the climate entity
    on again.
  domain: automation
  input:
    window_entity:
      name: Window Sensor
      description: The Window-Door sensor that controls the climate entity.
      selector:
        entity:
          domain: binary_sensor
          device_class: door
    window_entity_2:
      name: Window Sensor
      description: Another Window-Door sensor that controls the climate entity.
      selector:
        entity:
          domain: binary_sensor
          device_class: door
    minimum_open_time:
      name: Miniumum time the window is open
      description: Time in seconds to wait until the automation is triggered
      default: 12
      selector:
        number:
          min: 0.0
          max: 120.0
          unit_of_measurement: seconds
          mode: slider
          step: 1.0
    climate_target:
      name: Climate Device
      description: The climate entity that is controlled by the window sensor.
      selector:
        entity:
          domain: climate
  source_url: https://community.home-assistant.io/t/window-open-climate-off/257293
trigger:
- platform: state
  entity_id: !input 'window_entity'
  to: 'on'
  for: !input 'minimum_open_time'
- platform: state
  entity_id: !input 'window_entity_2'
  to: 'on'
  for: !input 'minimum_open_time'
condition:
- condition: not
  conditions:
  - condition: state
    entity_id: !input 'climate_target'
    state: 'off'
action:
- service: climate.turn_off
  entity_id: !input 'climate_target'
- wait_template: "{{ is_state('!input window_entity', 'off') }}"
  continue_on_timeout: false
- wait_template: "{{ is_state('!input window_entity_2', 'off') }}"
  continue_on_timeout: false
- service: climate.turn_on
  entity_id: !input 'climate_target'

Tried different Iterations of the Wait Template, however i cant really find anything about using Input Sensors with Wait Templates,

Any Help is greatly appreciated!