Push notifications do not work in "production " mode in IOS application

Hello, good afternoon.
I have the problem that notifications in my IOS app are not getting push notifications in "production" mode.
I'm using the following libraries:
-Xamarin. Firebase. IOS. Analytics 5.5.0
-Xamarin. Firebase. IOS. CloudMessaging 3.1.2
-Xamarin. Firebase. IOS. Core 5.2.0
-Xamarin. Firebase. IOS. InstanceID 3.4.0
If I run the app in "DEBUG " mode, push notifications arrive correctly.
When I upload the app to the AppStore I do with the configuration of APNS in "Production " and the file entitlements. plist also in "Production ".
The compilation form is "AppStore ".
Can someone help me with this problem?
Thanks a lot.
Best regards