@Galinette-Retro
as tut activé la wiimote dans recalbox.conf ?
# Real wiimotes must not be paired with recalbox system so that they can work with the wii emulator
# set realwiimotes to 1 to use authentics Wiimotes pads on default
wii.realwiimotes=0
Source : https://gitlab.com/recalbox/recalbox/-/blob/master/package/recalbox-system/x86_64/recalbox.conf