i have an actor where there is a static mesh and a box collision as its child. the box is set to block all. when i simulate physics and let it fall to the terrain, it goes right through. terrain also is on block all. the mesh however successfully collides with my player, but nothing else. not even a…

the collision box should be the root of the hierarchy. if collision is a child, attached to a parent, it wont stop the parent from falling through.