Animation @ Naming System not working

So unity supports importing animations using multiple files. One example would be, having a model file named human.fbx, and a copy of that model file, except with animation, named human@dance.fbx. This would normally import only the animation data from the dance file, and apply it to human.fbx.

For some reason, this isn’t working in my project. I tried this in a different project with the same model files, and it works, but not in my current project. How can I fix this? Thank you.

Nevermind it’s working, it just doesn’t look like it’s working…