Mapping the wii mote worked flawlessly, however when I plugged in a nunchuck or classic controller pro suddenly I am unable to map any button inputs including the wii mote. Even when I unplug the nunchuck or classic pro I am still unable to map the wii mote, not until I close and restart WiinUPro I am able to map buttons again. (Using original wii mote not plus) (Using WiinUPro.0.9.2)
I have the same problem. Can map the buttons on wiimote in Cemu, but not the buttons on the nunchuk. WiinUPro detects the nunchuk but it shows no heat map when pressing any button while nunchuck is plugged in. I can still map the buttons on the wiimote in Cemu while the nunchuk is plugged in, just not any button on nunchuk.
Sorry this took so long. I just recently ran into this issue, it's very very odd and I'm not 100% sure why this is happening but I have some code to fix it. I'll try to have the next release built and finished soon.