Double check your GC config tab even though you don't have a Gamecube controller plugged in. Many times when a Wii mote gets plugged in there is no feedback because the Gamecube port is set to whichever controller. I might add to make sure your Gamecube ports are set to "Nothing" under the Gamecube config tab, I've had this happen everytime I'm switching between playing GC and Wii and have to constantly go back and switch them on and off in the menus.
[color=#666666]MSI [/color][color=#ff9933]CX[/color][color=#666666]60[/color]
[color=#999999]i5-4200M @ 3.5Ghz [/color][color=#ff9933]turboboost[/color]
[color=#666666]N[/color][color=#999999]vidia GT720[/color][color=#ff9933]M[/color]
[color=#999999][color=#666666]1[/color] [/color][color=#ff9966]TB[/color] [color=#999999]HDD[/color]
[color=#666666]Windows[/color] [color=#ff9933]8.1[/color]
[color=#999999][color=#666666]Wii [/color]Pro Controller [/color][color=#ff9933]+[/color] [color=#999999]Mayflash adapter, Wii Mote [/color][color=#ff9933]x2[/color]
[color=#999999]i5-4200M @ 3.5Ghz [/color][color=#ff9933]turboboost[/color]
[color=#666666]N[/color][color=#999999]vidia GT720[/color][color=#ff9933]M[/color]
[color=#999999][color=#666666]1[/color] [/color][color=#ff9966]TB[/color] [color=#999999]HDD[/color]
[color=#666666]Windows[/color] [color=#ff9933]8.1[/color]
[color=#999999][color=#666666]Wii [/color]Pro Controller [/color][color=#ff9933]+[/color] [color=#999999]Mayflash adapter, Wii Mote [/color][color=#ff9933]x2[/color]