That's been a known problem for a while. There is a workaround though. Push the home button then open the mii maker. It will ask to close suspended software, just click yes and continue. Then you can exit mii maker and return to the home menu
Ohh cool thanks for letting me now xD, i probably have the first time gateway user all written over my face
To fix the Smash Bros. problem, just go to a different app like StreetPass Mii Plaza after suspending it. That way, you'll still stay on emuNAND.
Thank you very much to you too!