Can't set value from scene

[infernix]

Hi,

Variable definition:

variable:
 setpoint_temperature_living:
  value: 18
  restore: true
  attributes:
          friendly_name: 'Setpoint Temperature Living'

Scene:

- name: "Climate: sleeping"
  entities:
    variable.setpoint_temperature_living:
      value: 20

When trying to activate this scene, HASS logs: hass[20221]: #033[33m2018-01-10 19:33:29 WARNING (MainThread) [homeassistant.helpers.state] reproduce_state: Unable to reproduce state <state variable.setpoint_temperature_living=None; value=20 @ 2018-01-10T19:33:16.193756+01:00> (2)#033[0m

Is this not supported?