So, I have the gamecube adapter, I can get it working on nintendont on the wii u, but only on SD mode. Both cables must be plugged in to the back for it to work, and oddly, if I switch them both to the front after launching a game, it still works, but won't work if they are plugged into the front ports before launching a game. My USB drive works to load the games, but has to be in the usb port on the back to the right, so I can't load it with the gamecube adapter that way. Is there any way to use both the adapter and usb drive at the same time?