No segments events triggered

I am having a issue where segment doesn’t receive any events at all from my app. I have configured it according with the docs.

I run
Segment.initalize({ iosWriteKey, androidWriteKey });
Segment.screen(routeName); (On navigation)

The writeKeys are the same as in my segment controlpanel. The app is run in standalone mode and is deployed at Google Play.

Is there anything else I am missing that is not in the documentation? The segment debugger is not recording any events at all.