Google Play load problem

Hi, I have a problem. I get autenticate a local user, create a leaderboard.....all is ok. Furthermore when I start my app a Google Play welcomes me. But the issue is when I try to show that leaderboard through a button. It doesn´t work. A popup appears . it says leaderboard and it loads something but never showing anything and my achievements doesn't show up.

EDIT: My friend can see leaderboards but he said he waited like 1 minute. I guess problem is loading time. how can i fix it?

at start

 PlayGamesPlatform.Activate();
         if (!Social.localUser.authenticated) {
             Social.localUser.Authenticate ((bool success) => {
 
                 if(success){
                     Debug.Log("Logged in");
                 } else {
                     Debug.Log("Not Logged in");
                 }
                 
             });
         }

leaderboard button

 public void LeaderBoard(){
     if (Social.localUser.authenticated) {
         ((PlayGamesPlatform) Social.Active).ShowLeaderboardUI ();
     } else {
             Debug.Log("Not Logged in");
     }
 }

and an example

 Social.ReportScore ((long) highScoreCount, rot.leaderboard_normal_mode, (bool success) => {
 
         });

achievement button

 public void Achievement(){
         if (Social.localUser.authenticated) {
             Social.ShowAchievementsUI();
         } else {
             Debug.Log("Not Logged in");
         }
     }

and an example

 if (PlayerPrefs.GetFloat ("hs1") == 50 || PlayerPrefs.GetFloat ("hs1") > 50) {
 
                 Social.ReportProgress (rot.achievement_amazing, 100.0f, (bool success) => {
 
                 });
             }