Project Griffon iOS PIN screen visual issue

Hi,

We implemented the project Griffon part in our React Native app and for Android this is working properly, the iOS app however has a problem displaying the pin screen overlay. When scanning the QR code there is on the top of the page a part of the overlay is shown but cannot be interacted with (black/white part on the top of the screenshot) :

Anybody encountered this or has an idea on what the possible cause would be?