Notifications in the nextcloud application

Dear all,

I have Nextcloud Hub 9 (30.0.4) and currently notifications to users do not work when sharing a resource in the app. .
However, when sending the link outside, the notification works.
Do you also have such a problem with yourself?

Thank you!

How are your sharing options looking like (Admin settings → Activities)? You need to activate push notifications.

In the options I have email and push notifications checked
Before updating to Nextcloud Hub 9 (30.0.4) everything worked fine with these settings.