Collisions and child meshes

I clearly must’ve gotten something wrong, but I can’t set up a collision for a child mesh in my scene. The character capsule collides normally, but the child actor in a socket fires neither collision nor overlap events. I’ve tried giving it its own capsule and custom collision channels but it didn’t help. Please, give me some advice or a direction where to look, I am already stuck with it for a weak now, and I failed to find any info about it anywhere.