Deployed Android Texture2d image scrambled

When I draw a Texture2D using GUI.DrawTexture it looks great in Unity. However when I deploy to my Android test device the image is scrambled and does not display correctly. How can I fix this? Here is the code I'm using.

 public Texture2D ControlImage{get;set;}
 
 // Use this for initialization
 void Start () 
 {
   ControlImage = Instantiate(Resources.Load("JoystickThumb"))  as Texture2D;        
     
 }
 
 // Update is called once per frame
 void Update () {
 
 }
 
 void OnGUI()
 {
     
         GUI.DrawTexture(new Rect(0,200,256,256),ControlImage);
 }