Controller buttons work fine and act as they should in ES, jstest, and in the runcommand window.Controller mapped in ES using recommended mappings.Testing Mario Kart 64 and Super Smash Bros on lr-mupen64plus-next using 49-21 video setting (640x480).Latest RetroPie setup script with basic install.Fresh, updated Raspbian Lite with Wifi and SSH enabled, stock video settings.This has been driving me crazy for the past few days.