[Bug]: playerId sometimes for some users is empty

[tosuccesspractice]

What happened?

playerId is empty for some users when i retrieve it with OneSignal.getUser().getPushSubscription().getId() to send it to my backend i also tried to get it after X minutes after launching the application

Steps to reproduce?

Install on Android application implementation 'com.onesignal:OneSignal:[5.0.0, 5.99.99]'
Initialize OneSignal on myApplication like that : 

        OneSignal.initWithContext(this);
        String ONESIGNAL_APP_ID = "XXXXXX";
        OneSignal.initWithContext(this, ONESIGNAL_APP_ID);

And later when trying to get the playerId :
OneSignal.getUser().getPushSubscription().getId() it's empty 

the problem is also reproduced when notification for the application first is disabled and when notification become enabled, OneSignal.getUser().getPushSubscription().getId() return always empty
i try using OneSignal.getUser().getPushSubscription().optIn(); and that change nothing to the problem

What did you expect to happen?

I except getting playerId value

OneSignal Android SDK version

5.0.0

Android version

15, 14, 13

Specific Android models

No response

Relevant log output

No response

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