How to use multiple PS3 controllers in Lakka/Mame?

Hi, I just set up my first lakka pc. I managed to sync 2 PS3 controllers and they show up in the input settings. My problem is when I launch a game (only have arcade roms and n64 roms on it at the moment) the two controllers act really weird. The setup and start buttons stop working on controller 1 but work on controller two. Is there a reason why some of the buttons from controller one are working on the 2nd controller instead?
Sorry I’m new to lakka and appreciate any help in getting two PS3 controllers configured properly via bluetooth connection.

Thanks, Rick