The trigger is just a trigger box dragged into the world from the Modes Panel to the left. The overlapping actor is a blueprint with a wall mesh. These two are overlapping. The box trigger is attached to the camera.
How is this?
I think I should mention that the camera moves by the level blueprint, not its own actor.
I added a color to the wall actor to help distinguish it from everything else.
I don’t know why I picked the trigger, it was just the first and best thing I found. I didn’t know there was much of a difference to be honest. I’ll try with collisions instead.
Anything else you would like to see/know?