Since the radio module version 2.0, there is a customized procedure for registering devices.
In the case of unregistered lights, after a certain period of time, the transmission interval becomes so long that the light is removed from the unknown nodes. See also the following sentence from the manual: “If a device’s wireless connection is broken for more than 5 minutes, the device will be removed from the Unknown nodes section.”
This adjustment was made so that as many radio connections as possible are free for sending and receiving and the system remains fast. All available lights can be displayed at any time via the "Find new devices" button.
