Today @sonoff Rf and @ewelink are failing, all the alarms that I have saved as independent ewelink think they are the same. Therefore if you have 4 buttons that turn on 4 different lights, now they all turn on at the same time no matter which button you press.
I have a lot of experience using ewelink, my system has more than 130 devices and complex scenes. Today all ewelink sonoff rf alarms stopped working. Causing a serious security problem, doorbells activate doors and motors, etc.