Ok so I figured it out, you have to use this new beta version of the GUI. I would link it but this forum isnt letting me. its 1.16.4
Use this and use Futaba as a controller in the GUI if youre using the Turnigy Evolution
I am having the same issue! I know for sure its a data cable and am using the bundle download from the kiss website. This is my first build and I am so close to completion and then this happens!