Mame 2010 crashing

I would like to use this core for a lot of games but for some reason it crashes every time I press the A button (action button ) on my controller. There are no options to remap the controller buttons in the game options for mame 2010 either, The A button is also the select button when in the mame menu within the game and when I’m in the mame menu, it doesn’t crash when I press it if that info helps. Any ideas how I can stop it crashing other than not using the A button? I kinda need to though as it’s generally used in every game :slight_smile: I’m running Retroarch in Windows 8.1