Alright, so here's my dilemma. I am not having any issues running a single controller using the adapter, but whenever I try to use more than one controller it only registers the controller in the first port and doesn't allow me to change the input for the controller(http://imgur.com/xU2vDCX). However, whenever I switch my adapter to wii u mode, all the controllers will register, but the L and R triggers are stuck. Any help is appreciated.
Working controller format for one controller with nintendo adapter in PC Mode: 1st picture http://imgur.com/a/5gDsE
Failing controller format for two controllers with nintendo adapter in Wii U Mode: 2nd and 3rd picture http://imgur.com/a/5gDsE
Current used driver: https://wiki.dolphin-emu.org/index.php?title=How_to_use_the_Official_GameCube_Controller_Adapter_for_Wii_U_in_Dolphin#OS_X
Working controller format for one controller with nintendo adapter in PC Mode: 1st picture http://imgur.com/a/5gDsE
Failing controller format for two controllers with nintendo adapter in Wii U Mode: 2nd and 3rd picture http://imgur.com/a/5gDsE
Current used driver: https://wiki.dolphin-emu.org/index.php?title=How_to_use_the_Official_GameCube_Controller_Adapter_for_Wii_U_in_Dolphin#OS_X