OnParticleCollision() does not work

Hi,
I created a new scene, added a box with a collider, created a particle system (settings are on the screenshot), added my script to both, and it doesn’t work on either. I’ve read forums and watched a youtube video showing exact this process, it just does not work. As for the renderer, I’ve tried sphere, box, billboard, nothing works.
I’ve also tried adding rigidbody to the particle system and the box. No idea what else to do.
EDIT: The collision itself works, but my problem is with the event.


2936387--217198--Imagweqw2e 11.png

I noticed that OnCollisionEnter also didn’t work and restarted unity. That helped… sigh