Notification for unread messages

Hallo, we want to use for our sports club and are now testing and playing around.

We noticed that new unread messages are not marked. This appears on iOS and Android apps, desktop apps and even in the browser. So I assume it may be a configuration problem? I aleady studied the docs, and found a control option „unread tray icon“. But I cannot find this setting on my mobile or desktop app. We are using

Maybe someone can give a hint. Thanks in advance.


I have exactly the same problem.