Why do I see a message saying everything is fine, but I notice some sensors are down in the list?

Why do I see a message saying everything is fine, but I notice some sensors are down in the list?

We have the ability to enable or disable monitoring for each sensor. If we know that a sensor will be down for maintenance or offline for an extended period, we disable the monitoring to prevent you from receiving excessive incident notifications. Once the sensor is back online, monitoring will be re-enabled, and incidents will be reported again.