Q17. Appliances does not respond to the App.
Does the infrared rays of Nature Remo reach those appliances? Nature Remo is transmitting infrared rays from the top surface, which you see the lighting. Please point the surface of Nature Remo to the infrared receiver of those appliances and see if it works.
Moreover, you may require Nature Remo to re-learn the infrared correctly again. If there are multiple infrared transmitters on the remote control, close them with something like tape so that only one infrared transmitter is exposed, and shortly press the remote control button once in order for Nature Remo to learn the infrared.