Hi,
On iOS 13 and iOS 14, if you have a navigation controller that use large titles and you push a controller that does not want a large title (navigationItem.largeTitleDisplayMode = .never) there is a smooth animation between the two navigation bar heights (from the large one to the small one).
On iOS 15 the animation is missing and during the transition the pushed controller view top part is covered by the large title bar until the end of the transition. After the animation is done the height of the navigation bar suddenly becomes small.
Here's the transition on iOS 14. The navigation bar height gradually changes from large to small:
And here's the transition on iOS 15. The navigation bar height is not animated and remains the same until the end of the transition animation:
I opened a bug report regarding this issue (FB9290717) but I want to know if someone has found a temporary fix for this.
Thank you