GameCenter Achievements wont pop

Hello, we are having trouble popping our Game Center achievements on our app in development.
We are using Unity2019.3.9, and the app is in beta and we are testing on TestFlight.

When we achieve the requirements in TestFlight we call the Social.ReportProgress and the callback returns true.

However the achievement popup does not appear and even if we call Social.ShowAchievementsUI the UI does not show the achievement completed.

However there are some achievements that we added earlier in development that do work.
Only ones we added recently do not pop.

Is there anything we need to do after adding achievements for them to be able to achieved?

Our code is:

Code (CSharp):

1. static public void GameCenterReportProgress(string _id, double _progress, UnityAction<bool> _callback)
2. {
3.     if(Social.localUser.authenticated == false)
4.     {
5.         return;
6.     }
7.     double progress = _progress * 100.0;
8.     if(progress >= 99.999 && progress < 100.0)
9.     {
10.         progress = 100.0;
11.     }
12.     else if(progress > 100.0)
13.     {
14.         progress = 100.0;
15.     }
16.     Social.ReportProgress(_id, progress, _success => {
17.         Log($"GameCenter ReportProgress {_id} result:{_success}");
18.         _callback.Invoke(_success);
19.     });
20. }

 

Did you ever solve this? I'm in a similar place and finding very little information on how to make it work.