Dumping textures for Mario Kart Arcade GP

[Reversinator]

I normally use Dolphin 5.0, but I wanted to try out Mario Kart Arcade GP, and most of the new builds simply don't run it. Using this tutorial, I was able to run it on Triforce-4.0-315 without any issues, excluding the fact that dumping textures doesn't seem to work. I know that they're found at Documents\Dolphin Emulator\Dump\Textures\[whatever id] if I dump textures through Dolphin, and it's worked without issue for 5.0, but using it on 4.0-315 gives me nothing, not for MKAGP or any other game. I don't suppose there's a simple workaround or a third-party program?