Distance to nearest surface always 0. Why?

Development Rendering
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In materials my distance to nearest surface node always returns zero.

My distance field gradient always returns 0,0,1 as well.

I have generate mesh distance fields turned on and have turned of cast shadows on the mesh with the material.

It does this in different projects. Is there something I just don’t undertsand about using this node? I have tried to use the examples from the UE4 documentation (Utility Expressions | Unreal Engine Documentation) and also read this Tom Looman post as well (http://www.tomlooman.com/distance-fields-unreal-engine/).

Any thoughts on why I am having trouble?

My test material:

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I will leave this embarrassing answer here for posterity after I agonized over this all day.

Two of my engine scalability settings were not set to EPIC. Setting them all to epic allowed this to work.

I think I need a drink now.