So the issue I’ve been debugging for 3 days: a temperature item didn’t show up in the mobile app, neither in the standard “home” or an additional sitemap I’ve created. The value was just blank, no dash no tothing. They showed up fine in the paper ui “control” section. The issue reproduced both on iOS and Android apps.
Rest response was fine, it returned the correct value.
Apparently the issue was the length of the item name “LivingRoomSensor_SensorTemperature”.
After changing the name to a shorter “LivingRoomSensor_Temperature” it works fine.