How to resolve AR Foundations iOS mobile app black screen issue?,How to resolve black screen issue for Unity AR Foundations iOS mobile application?

I have built an object detection mobile application for Android and iOS using Unity’s Barracuda and AR Foundations packages. The application works fine on Android but while running on iOS the screen turns black. Any help in this regard is appreciated.
Unity Version: 2020.2.0f1
Mobile: iPhone 12pro
Barracuda: 1.2.1 Exp
AR Foundations: 4.1.7
AR Kit Plugin: 4.1.7

Can someone please reply to this?

I have the same issu,having the same issu