Wii U Pro Controller detects as a standard Wii Remote Plus

[FBEthePoS]

Hiiiiiii! I know I might probably be a bit late on this, but I'm a rookie coder, and I'm making a very ambitious mod for a fan game that has support for almost all the extensions (including some new ones I coded in myself, like turntables, drawing tablets, and even the Shinkansen controller, a barely-documented extension). I've gotten pretty far and I'm proud of my progress. However, ever since the start, I was struggling to know how to integrate Wii U Pro Controller support into the project. It does detect that a controller is indeed connected and it does rumble when the game boots up, but it does not seem to change the LEDs to the same unique pattern as the Wii Remotes do on the game's boot-up. Not only that, but it reads as a standard Wii Remote Plus with no extension connected. The controller icon in my game just shows the standard Wii Remote Plus and it doesn't read any buttons from the Wii U Pro Controller. I tried everything, from trying to make the game forcefully detect a Wii U Pro Controller uniquely to modifying the WiimoteManager.cs file to make it more specific with what the controller really is, adding new VIDs and PIDs, all of that, no dice. I thought this was a problem with my project, but I also went to the test scene, and it also detects as a standard Wii Remote Plus... I'm not sure if this is a problem with the specific version of the API, since my testers didn't have a Wii U Pro Controller, or if this is an issue from my end, even though I tried using a third party program that can flawlessly detect a Wii U Pro Controller, I'm not sure what's going on...

I did check the extension test and it does indeed change the bytes when the controller's buttons are pressed, but it still detects as a standard Wii Remote Plus. I'm not really sure what to do since it doesn't show the initialization bytes in the extension test though.

How do I fix this issue?