incorrect operation on some devices

We have developed n ° 3 Qr code for the AR.
It works correctly with Iphone 12 mini, Iphone 12 pro and samsung s9.
With some models, such as iphone X, SE, 6S or with Huawei P20 Pro, it does not work correctly and when active the fullscreen button is blocked on the home screen

Where did I go wrong in programming and how can I fix it