Similar problems. Two identical DragonRise USB Joystick, with same identical connection to usb encoder. In EmulationStation Player2 buttons respond correctly, also if just one config is written (identical joystick). When i start lr-mame2010 with - for example - street fighter i see that player1 controls are OK, player2 controls are ok BUT only 4 buttons of 8 is working. Tryig to make /boot/cmdline.txt mods. Trying also to reconfigure manually in retroarch. What can be? becoming crazy from a week !!! Thanks