PlayerPrefsX - Not Saving?

Hello,

I'm trying to work on an award system, the first award I'm working on is "completing a level" award.

At the end of the level, a menu pops up saying congrats - you've completed this level. This then sets a boolean called "CompleteAward" to true. So when I go back to my main menu, under my award menu, I can see my award is unlocked (completed). This all works great, but I can't seem to save this boolean's status.

The weird thing is, is that I'm using the same system for 'Game Stats' - which basically tells you how many enemies you've killed throughout the game - and this works, it saves and loads.

The only difference I am using between the two are PlayerPrefs and PlayerPrefsX (which allow me to save booleans). I just cant understand why it wont save/load the PrefsX.

Okay, well here is a snippet of my pop up end of level menu: (Menu.js) - this is in my LEVEL

 function OnGUI(){
     
    if(Controller.RoundComplete == true && paused){
        // ---- Review Awards ---- \\
        // complete map
        if(saveComplete){
            CompleteAward();
            saveComplete = false;
        }
     }
 
    // Continue Button \\
    if(GUI.Button(Rect(Screen.width/2 - 400/2 ,Screen.height-300, 400, 100), "Continue")){
     Time.timeScale = 1;
     // Game Stats \\
     PlayerPrefs.SetInt("Credits.XP", Credits.XP);
     PlayerPrefs.SetInt("TurretStats.turretsPlace", TurretStats.turretsPlace);
     PlayerPrefs.SetInt("TurretStats.turretsDestroyed", TurretStats.turretsDestroyed);
     PlayerPrefs.SetInt("TurretStats.turretsRepaired", TurretStats.turretsRepaired);
     PlayerPrefs.SetInt("TurretStats.turretsUpgrades", TurretStats.turretsUpgrades);
     // Award Stats \\
     PlayerPrefsX.SetBool("MapStats.mapOne.CompleteAwards", MapStats.mapOne.CompleteAwards);
     Application.LoadLevel (0 + 1);
    }
 }


 private var saveComplete : boolean = true;
 
 function CompleteAward(){
     var externalSpawn = FindObjectOfType(Spawn);
     var externalStat = FindObjectOfType(MapStats);
 
     if(externalSpawn.MapSelected == 1){
         MapStats.mapOne.CompleteAwards = true;
         //PlayerPrefsX.SetBool("externalStat.mapOne.CompleteAwards", externalStat.mapOne.CompleteAwards);
     }
 }

Here is my MapStats (basically holds the info for my awards): - this is on my MAIN MENU

 class MapOne {
     static var CompleteAwards : boolean;
     static var DefenderAwards : boolean;
     static var BuilderAwards : boolean;
     static var WageAwards : boolean;
     static var PeakAwards : boolean;
 }
 static var mapOne : MapOne = MapOne();

 function Awake(){
     mapOne.CompleteAwards = PlayerPrefsX.GetBool("mapOne.CompleteAwards");
 }

Can someone please help me out here.

Thanks