[iOS] Content of the Qt Quick application is not properly displayed in the app on iOS

MacOS 15.4.1

Qt Creator 16.0.2

Qt 6.9.1 / Qt 6.10.0 (dev snapshot)

Device: iOS Simulator

Steps to reproduce:

1. Launch any Qt Quick application (I used text editor and quick controls gallery) on iOS device/simulator.

Expected: The application works correctly and shows proper content as it is on Qt 6.9.0

Actual: The content seems broken, only the header is displayed, the rest is not visible - see attached screenshots. 

Reproducibility:  100%

NOTE: This is a regression from 6.9.0 - it works well when built with 6.9.0