Hi,
most of the time (not always) after selecting the game I get a black screen. After I remove one of my two controllers the emulator starts immediately (I see the three boxes in the right bottom corner and the game gets loaded). Unfortunately in most games if I unplugged the second controller the 2nd player can’t move within the game.
I use a B+ and installed the “newest” retropie a month ago. I use some fake playstation usb controllers which are recognized as dragonrise. I also tried to configure the opt/retropie/configs/all/retroarch.cfg and even the cfg in the emulators directory. But my guess it that it is ignored because the hotkey + exit is also not working.