Hello, We use hierarchies of sensors and equipment. Last week, I determined the sensor availability of Wi-Fi antenna as a parent and I indicated that this equipment depend on another sensor on another device. Today Wi-Fi antenna no longer works. All its sensors are red, while only the availability sensor should be. This is not the first time we encounter this problem, you must re do the configuration each time. It takes a lot of time. Why the hierarchy no longer works. As if the configuration was gone.