I built a Raspberry Pi to (mostly) replace my NES Classic. I was using two Club Nintendo SNES Classic Controllers on my NESC. I wanted to use them on my RPi, so I bought the Mayflash adapter. When configuring the buttons in EmulationStation, all buttons are recognized EXCEPT the L and R buttons. I also have a Wii Classic and Classic Pro, and all buttons and analog sticks are fully recognized. I really want to use the SNES controllers on my RPi, but it's a real problem without the shoulder buttons. Any ideas?