@fallonpp Check your ROMSET, test with another emulator / core, this is usually the fault of the wrong ROMSET.
Arcade has a peculiarity, ROMS must be the same ROMSET as the core used, read this:
https://recalbox.gitbook.io/documentation/v/francais/usage-avance/l-arcade-dans-recalbox#iv-l-arcade-et-recalbox
