Can't see my character when I press Play. (2d side scroller)

I’ve just started learning Unreal Engine, so I’m certain this is a very simple problem to resolve so I apologize in advance. I’ve been trying to figure it out all day though with no luck.

I’m using Paper2D and I’ve got my blueprint displaying fine in the level VIewport. I’ve verified that he’s at Y=0. I’ve got several block sprites placed underneath him and verified that they’re at Y=0 as well and that their collision is set to “tight bounding box”. My character sprite is 32x32 pixels and I’ve got the “ortho width” on my camera set to 500. It appears just how I want it in the little view window that pops up when I’m changing the camera settings.

When I hit play, however, it’s just a black screen.