facebook GetPictureURL logs different URLs, but shows same texture2d image

I used unity 4.6 ui to create a simple friend leaderboards, I am getting the correct names and scores but the sprite for the friends profile picture is all the same! I logged it to check if the proper image urls are being loaded and it does, I dont get why I am getting the same image.

here is how i load the friends list

 IEnumerator setFriendList()
     {
         
         foreach(object friend in friends) 
         {
             Dictionary<string,object> entry = (Dictionary<string,object>) friend;
             string name = (string) entry["first_name"];
             string id = (string) entry    ["id"];
             Texture2D picture = null;
             while(picture == null)
             {
                 yield return null;
                 LoadPicture(Util.GetPictureURL(id, 128, 128),pictureTexture =>
                             {
                     if (pictureTexture != null)
                     {
                         Debug.Log("image loaded from url "+id);
                         picture = (Texture2D)pictureTexture;
                     }
                 });
             }
             FbFriend fr = new FbFriend(name,id,Random.Range(100,100),picture);
             friendlist.Add(fr);
             if(friends.LastOrDefault() == friend)
             {
                 doneLoadingPicture = true;
             }
         }
     }

sadly picture is returning the same sprite for every friend even though the names and scores are correct.