So my problem is this: My PS4 controller works fine mapping the buttons. However, it seems to think a button called "UNK1" is constantly being pressed. Mapping the buttons makes the emulator show "B1", "B2" etc. Having pressed every single button, I can't find one that shows "UNK1" and I have zero idea what it means. Also, I'm a D-Pad player, and I can't possibly get the D-Pad to register in the emulator. Pressing a DPad button, even on the mapping to a D-Pad button on the emulator, does nothing, and it only accepts analog stick input. Can someone give me some guidance? I never had this problem with my PS2 controller (I don't use it now because it's broken.) so I'm a little confused.