There is a bug in the Fibaro RGBW driver. I have it set up for a single channel only, so I have R=0, G=100%, B=0. For now, I'm happy to just turn it on/off.
The problem is that the on command does not work, and generates a "java.lang.NullPointerException: Cannot get property 'red' on null object on line 260 (method on)" error in the log.
Personally I don't care that much, I have switched to the "Zooz RGBW Dimmer" driver, which seems to work fine, but I just thought that I should report it. Some kind of acknowledgement ("Right on, we're gonna have a look!") from anyone at Hubitat would be nice though...
