Order of elements wildly mixed

[jtauscher]

Hi guys, the order of group elements seems to be random but only for the groups

entity: climate.ac_wz_ez
name: WZ & EZ
hide:
  state: true
  temperature: false
step_size: 1
control:
  hvac:
    'off':
      name: false
    auto:
      name: false
    cool:
      name: false
    heat:
      name: false
    dry:
      name: false
    fan_only:
      name: false
  fan:
    _hide_when_off: true
    auto:
      name: false
type: custom:simple-thermostat
layout:
  step: row
  mode:
    names: true
    headings: false
    icons: true
header:
  name: WZ + EZ