BoxComponent overlap not triggering

So I’m trying to detect when something is in front of the player using the overlap system.

I create a box component thus, and tick the boxes to say do overlappy things…

Then I write a blueprint to tell me “What’s in the box”

When I run this, I get nothing. Even when I can blatently see there is something inside

Does anyone know what I’ve missed that means the overlaps aren’t firing?

NB. I hope this is the right forum, none of the others seemed to fit :o