UIViewController In-Call Status Bar Issue

Issue

20px high empty/transparent space left after In-Call Status Bar disappears

Normal Status Bar : Fine

In-Call Status Bar : Fine

In-Call Status Bar Leaves : Issue! Leaves a 20px high empty/transparent space at top revealing orange view below. However the status bar is still present over the transparent area. Navigation Bar also leaves space for status bar, its' just 20px too low in placement.

• iOS 10 based
• Modally presented view controller
• Custom Modal Presentation

I tried listening to App Delegates:

willChangeStatusBarFrame
didChangeStatusBarFrame

Also View Controller Based Notifications:

UIApplicationWillChangeStatusBarFrame
UIApplicationDidChangeStatusBarFrame

When I log the frame of presented view for all four above methods, the frame is always at y:0 origin.

View Controller Presentation

let storyboard = UIStoryboard(name: "StoryBoard1", bundle: nil)
self.modalVC = storyboard.instantiateViewController(withIdentifier: "My Modal View Controller") as? MyModalViewController
self.modalVC!.transitioningDelegate = self
self.modalVC.modalPresentationStyle = .custom
self.modalVC.modalPresentationCapturesStatusBarAppearance = true;
self.present(self.modalVC!, animated: true, completion: nil)