I have the same problem. I have a program in the system and I turn it to on. Then it at almost immediately turns to off and says at the bottom “these zones are never scheduled to water:” and lists out each of my zones. The exact zones (all of them) that are in the program I’m trying to turn on! So it’s useless right now because it won’t leave the program on!
I have Smart Watering turned off. And my MAC is 44:67:55:02:39:C8