I am a week into my MAME journey and almost have everything configured and running, but I am struggling with getting the system to respond to in-game usage of the P2 controls - buttons and joystick. I am using hyperspin as a front end, but have disabled hyperlauncher and am just using the mame64 emulator. I have manually configured each of the functions in the MAME64 configuration screens for both player 1 and 2. However, when it's player 2's turn, the player 2 controls do not work but the P1 controls do work for P2. It is behaving like the system thinks there is only one set of buttons and one joystick. Any suggestions on where to start looking?