Hello. I helped install 11 KS220 switches in my relatives house. 8 of the switches were V1 and 3 of the switches were V1.6. The switches that are Hardware V1 do not turn off when the brightness level is set to 1% through the app or by physically pressing the switch. If we set the brightness level to 2%, then we are able to turn off the light from the app and the physical switch. This issue does not exist with the 3 switches that are V1.6. Another issue we noticed with V1 of the KS220 switches is that the minimum brightness level does not actually get set after going through the calibration process for the brightness. So if we set the minimum brightness to where the lights are barely on when going through the calibration process and then when we change the brightness to 1%, the lights are at about 10% brightness instead of the brightness that had actually been set where the light should have been barely on in the calibration process. We have tested both of these problems on all 8 of the V1 switches and all of them have these same two problems. The firmware is up to date to the latest version 1.0.8 for all the switches. I personally have a couple of V1.6 and V1.8 of the KS220 switches and don't have these problems at all. Any help in solving these issues would be greatly appreciated.