Problem with KILL Z volume

Hey guys, my fish character is an actor and i simply want to it to destroy when it reaches the Killz volume. Im going absolutely crazy to why it passes it through all the way. So confused, and its probably a nooby thing to fix but I cant get my head around it.

Fish Collision

HitBox Collision

Killz Volume

what am i missing or doing wrong?

After messing around, I finally fixed. I had to cast twice to delete the box component and the fish paper component

Kill Z can be specified in the World Settings. It’s a global value that takes a fixed unit amount. I usually use something like -5,000 or -10,000 depending on how low the level goes below world 0. Sadly it seems like visualizing the Kill Z line doesn’t work in 4.27. I’ve never used a Kill Z volume before, but I suppose it should work the same, but usually, it works automatically so you don’t need to cast to anything.