Vertex color in 3d models not working

[RyannThi]

I've been trying to import a 3d glb model with vertex colors in it, but the engine renders them completely black if I do. Here's a few screenshots of that:

Here are also the exact files I'm using (in order of the pictures), if that helps: https://files.catbox.moe/xvsi9g.zip

If there is a known way of fixing this on the user side, I'd love to know too.