F-Zero GX GameCube inject has to have "(US Version)" in the game name for it to have a WUP installable.

I'm trying to put this game on my Wii U menu without the (US Version) being in the game title but the program isn't allowing it. It's just an empty folder without it being in the game title. I've downloaded several isos but all of them do the same thing. This is the only GameCube game doing this. How do I fix this?