Following the Blueprints Quick Start Guide, but it's not working

Hey there!
I was trying to follow the Blueprints Quick Start Guide on the Documentation Site.
However for me, after I convert the box+box collision to an actor, I can’t see them anymore.
All that shows up for me in the editor is the little circle for Empty Actor, but neiter Box nor Cox Collision show up.
What’s really strange is, that in the Details panel it shows both of them as part of the Blueprint, and the shadows in the editor also show that the box should be there.
When I try to play the level, I see nothing where the empty actor is supposed to be and nothing happens when I walk over the location.

I hope there’s an easy fix to this and would really appreciate some advice.
Thank you! :slight_smile: