Resources.Load works in Editor but fails when building to iPhone

I am using the Resources folder to store a CSV that I frequently update with my game's tileset level data. Everything works wonderfully when playing from the Editor, but when I build to my iPhone the data is not loaded. I've combed through Unity documentation but nothing has really addressed my issue. My script is very simple. I am also using the CSVEngine Asset from the Store.

Is there anything specific to the iOS platform that I need to consider?

using System.Collections;
using...

Resources.Load works in Editor but fails when building to iPhone