Generic Gamecube Adapter Not Working

[el_see]

Hello, new to the community. Recently purchased a generic gamecube adapter from ebay. I've tried literally everything I can to use it with no success on cemu and dolphin. I am using genuine gamecube controllers. When switched on pc mode, I can't get it to work. When on the wii u/switch mode, dolphin will detect the adapter and ask me if I want rumble when I hit configure. Whenver I start a game however, it does not detect any controller input. I have a turbo button and home button located on the adapter but have no idea what they do. Neither one makes any sign of working on any game. Anyone know what might be going on? Or do I just have a crap adapter?

[JosJuice]

Which games have you tested?

[DonMigs85]

Same issue here with Nyko Retro Controller Hub. USB ID is correct per Zadig, and the adapter is detected by Dolphin before I actually launch a game.