Paper tile map actor not functioning as expected with a Spot Light

I’m trying to light a paper tile map actor with a spot light. Unfortunately, while it looks okay in the editor, play in editor (and launching the game from an executable) produces this all or nothing effect between the tiles as well as a bunch of moving around depending on where the orthographic camera is positioned with respect to the scene. Point lights appear to work just fine. I’ve attached an image of the problem in the editor and in play in editor

.

The paper tile map uses a material copy of Default Sprite Material that is default lit instead of unlit and has no emissive color. I have forward shading enabled. The light itself is at default settings. I’ve tried building the lighting and pumping up the quality of the lighting up to premium. Does anybody know how to fix this?

Two things:
First make sure your min screen radius for lights is set to 0.0 in project settings
Second bump up your attenuation radius. That should fix it!