How to move AI when player moves through collsion box?

Hello, I’m a newbie of UE4.

I have some problem making algorithm of moving AI.

What I want to make is,
when vr character overlaps actor(collision box), AI walks to a target point.

I made some blueprints, but it doesn’t work.

Anyone has ideas?

Thanks a lot.


ps. node btw overlap and set boolean is Cast to player_2