I have the problem with the blackscreen too, every time I completed the first mission the screen got black with the words " Untracked build won't upload" then I had to restart the console, when I completed the level again the exact same thing happened again. Then I tried loading the next mission directly and it worked I played a little bit of the mission and saved but when I tried to load that save data the same thing with screen getting black happende. I really hope they fix this as soon as possible.