Today I exitted New Mario Bros 2 and ticked FBI, the screens all went black. After pressing the power button 10s, I turned 2DS back on and entered FBI, it's OK. But when I played Mario for 1 stage and ticked on FBI to check, everything went black again. It seems like playing then entering FBI results in black screen. Wonder if anyone has the same problem? Thank you so much. I have 2DS hack CFW and FBI 2.4.2.