Unity: Apple Game Center iOS7 Logs Score In Just 30 Minutes On The Leaderboard

My game is made using Unity 4.5 and UnityEngine.SocialPlatforms.GameCenter.

My game is in the app store. If I play a game and beat my high score, the Game Center is reported and I see myself on the leaderboard. If I play with another device, it also logs the score and I can see 2 points and 2 players. Everything looks good.

BUT and this is my problem, if after 30 minutes I run the app again on 2 devices, the scores disappeared from the leaderboard in the game center. (And if I check directly on the iTunesConnect website, my leaderboard is empty too).

I am having a hard time solving this problem, given that it works very well in Sandbox mode, my high marks have been here for several weeks now.

Thanks if you can help.

PS: My Game Center leaderboards as the following parameters: type of score format: integer, type of scoring: best score, sort order: high to low, score range: 0 to 10000. When I report the score to Unity C #, my leaderboard id (string) and my score (long) are correct.

I am using the function

void ReportScore (long scoreGC, string leaderboardID) {
    Social.ReportScore (scoreGC, leaderboardID, success => {
        Debug.Log(success ? "Reported score to leaderboard successfully ("+scoreGC+")" : "Failed to report score");
    });
}

      

        
        
        
      

    

When I debug it is a success. Thus, the score had to be sent to the game center. When I check Game Center on my device, the score is displayed. But after 30 minutes it is gone. I am assuming it was only stored in the local cache, but not on the internet. Is this a problem with Unity social library or Apple Game Center iOS7?