I have been having an issue with the LB/BB pause screen when using the Retroarch - MAME core. I have set the hotkey combination to Start + Select on my gamepad, but it brings up the MAME UI, rather than the pause screen. I would prefer to be able to bring up the pause screen, but I am not sure how I can achieve this. Any help is appreciated! I will link to an example screenshot of the MAME UI that I am referring to.
The pause screen shows up fine with other emulators and Retroarch cores.