Voxels not displaying in example map

I'm on Windows 10 and the master of this repo. I tried to checkout a previous version from a few weeks ago and had no luck there either.
I downloaded the assets using the script.
I run
```
cargo.exe run --release --features="amethyst/vulkan,amethyst/no-slow-safety-checks" --bin editor .\assets\maps\example_map.ron
```
It works but the voxels are invisible, though I can create more phantom voxels using C it doesn't show them:
Seems to be some kind of asset loading issue. There's no error in the console.