I don't know why but I've been having issues playing 3D Godot games. All the textures just start freaking out or it look blank, which is a shame because your screenshots look really cool :( I'll see if it's something on my end.
So I looked into it and it looks like Godot games are having graphics problems on AMD-based computers. I'll see if I can fix it but if not, I sincerely wish you the best of luck with the jam!