Resources.Load makes Featureless Oddity

Hello,

I am having a problem using code to go through tile atlases at startup and storing them for use when levels are created. The issue is that I seem to be creating a Texture2D, but it has none of the features/attributes it should. Here is the code:

 using UnityEngine;
 using System.Collections;
 using System.Collections.Generic;
 using System.IO;
 
 public class ArchMage : MonoBehaviour 
 {
     public Dictionary<string, Color[][]> mapTilesets; //One entry is one atlas
     private string[] mapAtlasFiles;
     private int numberAtlases;
 
     void Start () 
     {
         GameObject.DontDestroyOnLoad(transform.gameObject);
 
         mapAtlasFiles = Directory.GetFiles("Assets/Resources/Textures/Map");
        numberAtlases = mapAtlasFiles.Length;
         mapTilesets = new Dictionary<string, Color[][]>();
 
         foreach(string entry in mapAtlasFiles)
         {
             //Texture2D currentAtlas = (Texture2D)Resources.Load("/Textures/Map/" + entry); //Not registering
             Texture2D currentAtlas = Resources.Load(entry) as Texture2D;
             //Debug.Log("Entryname: " + entry);
             Debug.Log("Atlas: " + currentAtlas.height);  //Texture is being created but has no attributes (name, height, etc) used in later functions
             //Debug.Log("Atlas: " + currentAtlas);  //Displays an entry
             //Debug.Log("Texturename: " + currentAtlas.name);
             mapTilesets.Add(entry, AtlasTileData(currentAtlas));
         }
 
         foreach(var entry in mapTilesets)
         {
             Debug.Log("Atlas entry: " + entry);
         }
     }
 
     private Color[][] AtlasTileData(Texture2D atlas)  
     {
         Color[][] atlasTiles = new Color[numberAtlases][];
 
         int x, y;
         int a = 0;  
         for(y = 0; y </*atlas.height /  */MapConstants.tileRes/16; y++)  //Including atlasHeight causes the error to generate here for NullReference
         {    for(x = 0; x < /*atlas.width / */MapConstants.tileRes/16; x++) 
             {
                 Color[] tilePixels;
                 tilePixels = TilePixelData(x * MapConstants.tileRes, y * MapConstants.tileRes, atlas);
                 atlasTiles[a] = tilePixels;
                 a++;
             }
         }
 
         return atlasTiles;
     }
 
     private Color[] TilePixelData(int x, int y, Texture2D atlas)
     {
         Color[] pixels;
         int tilePixelSize = MapConstants.tileRes * MapConstants.tileRes;   
         
         pixels = new Color[tilePixelSize];
         pixels = atlas.GetPixels(x, y, MapConstants.tileRes, MapConstants.tileRes);
         System.Array.Reverse(pixels);
         
         return pixels;
     }
 
   

As you can see in the comments, what happens is this: If I debug for a Texture2D's presence, I get a positive. If I try to access any of its members (height, name, etc) I get a null reference exception, as I presently do when I run the game.

The (only, currently) file I have in there is in Resources -> Textures -> Map and is named Terrain.

Help is appreciated, thank you!