How is openwindow supposed to work?
I added active and openwindow to my thermostats:

`{
                    "active": true,
                    "name": "Heizung Leana",
                    "ain": "099950409035",
                    "window": true,
                    "battery": true,
                    "accType": "thermostat",
                    "openWindow": true,
                    "temperature": true
                },
                {
                    "active": true,
                    "name": "Fenstererkennung KiZi",
                    "ain": "099950409035",
                    "battery": true,
                    "accType": "window"
                },
                {
                    "active": true,
                    "name": "Heizung WZ",
                    "ain": "099950453543",
                    "window": true,
                    "battery": true,
                    "accType": "thermostat",
                    "openWindow": true,
                    "temperature": true
                },
                {
                    "active": true,
                    "name": "Fenstererkennung WZ",
                    "ain": "099950453543",
                    "battery": true,
                    "accType": "window"
                }`

But log of hoobs shows:
`[FritzPlatform] Heizung Leana Open Window (smarthome-window-switch): Can not find device with AIN: 099950409035
[FritzPlatform] Heizung WZ Open Window (smarthome-window-switch): Can not find device with AIN: 099950453543`

What is missing in my config? Thanks, Gerd