Cemu

it appears there is a bug in the mapping input section from a wiimote nunchuck. Cemu will detect all directions individually from a nunchuck c stick, but when trying to map all up, down, left, right it forces the overlap of two directions only allowing one X and one Y coordinate. It seems like the mapping could be fixed by adjusting the open parameters for mapping from the nunchuck in the api or cemu input settings code.
Perhaps adding a Y axis + and Y axis - as well as X axis + X Axis - could do the trick.

It looks like the code currently only enables an X- and Y- for the nunchuck cstick.