Unity can't load audioclip, but loads metadata from same class.

EDIT: Unity version: 5.4.2f1

Hi,

I have an issue with my AudioClip file. I created a container class specifically for music and its metadata for in-game display, including a float array to allow custom looped playback.

 My class structure is as follows.

 using UnityEngine;
 
 public class System_Music : MonoBehaviour
 {
     public AudioClip[] bgm_Clips;         // Actual song clip data.
     public float[] bgm_LoopPoints;        // Floats used for InfiniteBackgroundMusic.
     public string[] bgm_Titles;           // Song titles.
     /* public string[] bgm_Sources;          // Game sources.
     public string[] bgm_Type;             // "ORIGINAL", "REMIX", etc.
     public string[] bgm_Desc01;           // First line of description.
     public string[] bgm_Desc02;           // Second line of description.
     public string[] bgm_Desc03;           // Third line of description.
     public string[] bgm_Desc04;           // Final line of description.
     public Sprite[] bgm_Franchise;        // Game franchise icon for song.
     */
     public bool[] bgm_IsUnlocked;         // Unlock status for each individual song.
 
     // Singleton.
     public static System_Music bgm { get; set; }
 
     // Initialize the singleton.
     void Awake()
     {
         if(bgm == null)
         {
             bgm = this;
         }
         else if(bgm != this)
         {
             Destroy(gameObject);
         }
     }
 }

So I preloaded an song's AudioClip into my Clip array using the Inspector to test at runtime. I also typed some strings for metadata and a float for my loop point. The metadata and loop point display properly on the screen (a test OnGUI() for testing), but the AudioClip that is clearly present will not load and gives me a NullReferenceException, as if it's not loading it.

My audiosource is picked up fine by the main script, but whatever I do, it simply will not accept my AudioClip. It acts like it's not there. It plays in the Editor, it exists. So why isn't it loading at runtime?

I've attached a screenshot, 'cause I sure as hell can't see what I did wrong.