Has anyone observed sheet appearance/dismissal animation issues when using NavSplitView and the sheet presentation is originated from the detail view?

I have a TabView with 4 tabs. Each of them shows a NavigationSplitView and in some of them there are sheets opened from the detail view. The sheet animations look fine to me, but opening the sheet will SOMETIMES break the appearance of the TabBar.

Normal appearance:

After opening the sheet: The TabBars appearance will return to normal, when scrolling or interacting with the views.

hi,

i've seen the code that OP Mark was using that generated his question about visual issues with NavigationSplitView, and it has something in common with the code from Loahrs: both use a TabView as a top-level container with one or more NavigationSplitViews as panes inside a TabView.

before NavigationSplitView, it was made pretty clear that, in iOS and SwiftUI, you could put a NavigationView inside a TabView, but not the other way around, as TabView was considered a top-level container.

now, with NavigationSplitView, i think it's likely the case that NavigationSplitView is assumed to itself be a top-level container, so it should not be placed inside, say, a TabView.

if so, this could explain some of the visual problems that Mark and Loahrs describe.

so i wonder if anyone can confirm this assertion:

a NavigationSplitView should not be placed inside a TabView

might someone have an answer? if so, maybe that will help,

DMG