Shuriken collision with terrain?

Hi, guys! So I'm having a really annoying problem, I have a Shurkin that represents a magic spell. It's set to collide with world 3D and with everything in layer collision. Everything works fine as it collides with everything and all objects but not terrains. It won't collide with terrains no matter what I do. I even gave all terrains the same tag and tested the collision using OnParticleCollison, still nothing. Can anyone help me ?