[firebase_messaging] getAPNSToken returns null when relaunch app

[Ellynnn]

I build my app in release mode for IOS and on first launch during getAPNSToken() it will return me a value. I killed the app and relaunch it, the getAPNSToken() returns null and getToken() will hang. Can I know if this is an expected behaviour?

However, in debug mode, getAPNSToken() and getToken() always returns a value

[alvindrakes]

Hey @Ellynnn did you managed to find the solution or cause to this problem?