Random inputs with the GC WiiU Adaptor

[TehBazzard]

Hey there everyone, I'm playing with Melee and also the Brawl mod Project M with a Gamecube controller adaptor for the WiiU working on my PC with Zadig. It reads the adaptor, and everything is fine; but every now and then, the emulator seems to read a down-left input on both the control stick and the C-stick. A little bit later, and it forces a hold right input, and it doesn't go away even when I unplug the controller or the adapter. It's been a consistent issue and I have no idea what the cause is, so if any help can be given I'd greatly appreciate it.