Projectile collision only working sometimes


I’ve got some issue with the collision of projectiles which should bounce, like grenades.

I fire projectiles in the direction of a wall and some are bouncing and others fly directly through the wall.
I’m getting no hit or overlapping events in such a case.

Could this be because of the high speed of the projectiles or something similar?

I recreated the collision in Blender and in UE4. I set to default collision complexity and to “use complex collision as simple” but nothing changed the issues.

My character blocks normally when running against the wall.


I found out what I did wrong.

The collision component in my grenade projectile has to be the root.