I've spent hours trying to get my expansion boards to work. I have the f16v2 and a 16 port expansion board. I updated the firmware to b003 yesterday because I couldn't get the board to work. In test mode the 16 ports on the main board works but only port 20 on the expansion board. I have the expansion board powered on both sides and they are getting 12v in all the ports. I have 3 setups like this and the same result. I also set up a mega tree in xlights that has 20 strings of 50. Setup is 6 universes of 510 channels. So it runs from universe 1 channel 1 to universe 6 channel 3060. In the falcon I assigned ports 1-20 with 50 nodes starting at channel 1 and ending at channel 3000. I assigned port 21 with 30 nodes. When I output from xlights channels 1-16 work and then channel 20 on the expansion board. Spent hours on this. Any help would be appreciated.