okay so i just got done playing about 2 hours of Wii U. I turned it off without noticing i had left NSMBU inside it. So When it was off, I pressed the eject tray, now ive done this before where to disc pops out, and the system does it's usual bootup, then you just switch it off again. But this time when I did it, The Control pad did not turn on, the screen was black, the disc ejected fine, but the Wara Plaza did not show, no boot up nothing. Black Screen. Tried turning on the gamepad, it said could not find the console, tried turning off the console from the button, would not turn off, pulled the plug, waited about 5 seconds, put it back in, still nothing. Pulled it back out, waited 20 seconds, put it back in, and now it's fine again... turned it on and off a few times to test, and there hasnt been an issue, should i be worried about this?