Hello friends, I'm trying to replace the old switches with Sunnata dimmers and have an issue with the two location control. I installed the Master Sunnata connecting 4 wires per guide (point 7b) and it works well. Then I installed the second Sunnata per same point of the guide, and for some reason the second switch doesn't work at all - the button doesn't light and is fully dead. Is there a specific wiring schema which I should follow when two Sunnatas are used for two-locations control? Currently, as per guide Master is connected to 4 wires, and the Slave is connected to 3 wires. Should I try to connect slave to 4 wires as well following exactly the same color scheme as I used for Master (contrary to what guide suggests)? Is it possible that connecting two Sunnata in two-location control is not supported? If so, I also have a dimmer of other model - Maestro, is it possible to connect Maestro as a Slave of Sunnata? Here are details of my Sunnata wiring: [Master Black wire --- Wall Black wire (tagged), Master Another Black wire --- Wall Red wire, Master Blue wire --- Wall White wire, Master Green wire --- Ground ; Slave Blue wire is NOT used, Slave Black wire --- Wall White wire, Slave Another Black wire --- (Wall Black Wire + Wall Red Wire), Slave Ground --- Ground.] Note that I tried connecting slave black wires vice a versa and it didn't help.