Screen Title for GA Tag in Apps Event Tracking


Hello Tealium
I used Tealium IQ and GA 360 in my app. The tracking runs so far wonderfully.

My problem is that the screen title is not passed to GA when an event (link) occurs. The mapping in the tag is correct (screen_title on title, page and screenName) - in the Collect tag I also find the correct Screen_title (persisted via extension). But at GA the screen name is not transferred, but always overwritten with the URL utag....mobile.html.

Do you have any idea what I am doing wrong? How do I get Tealium to pass the Screen_title correctly to GA?

Thanks and greetings from Switzerland