Reader not working on iOS with package 4.x

[philitell]

I've used this package successfully in an production app. Recently i updated from 3.5.1 to 4.0.2 and nfc scanning stopped working for ios. On Android everything works fine. On iOS however no tags are recognized at all. After starting a session the bottom sheet (system overlay) opens and nothing happens when trying to scan a tag. I havn't changed any ios specific configurations

• it works with version 3.5.1
• no system reaction with version 4.0.2

Are there any configuration specific for ios and package version 4.X that i'm missing (and that are not in the Readme)