mine is working fine with vixen setup as dmx pro you don't set it as 512 you just set it for the channels of your controller I have 2 27ch dmx boards...
Another trick is that on 12v pixels, the small chip is the controller, and data-in is on that side of the pixel. The big chip is the buck converter....
Interesting thing happened. I have been plugging in the female end of the WS2811 strips into the f16v2. I tried plugging in the male end using jumper...