[iOS] Appshell tabs not appearing on iOS after screen rotation

[developerfiveneosoftware]

Description

I have raised this previously in the xamarin forms repo. But I have tested MAUI and it is also an issue here, so I thought I would raise it here also.

The Xamarin issue can be found at (with some screenshots):
xamarin/Xamarin.Forms#15684

I have also asked on the Micrososft Q & A for any possible workaround here:
https://learn.microsoft.com/en-us/answers/questions/1180648/xamarin-and-maui-shell-tabs-not-rendering-correctl

The tab views don't render correctly after rotating an iOS device on version 16.3 (from portrait to horizontal and back to portrait).
If you have a shell app with multiple tabs at the top, it initially loads all the data and allows the user to select the tabs.
Rotating to landscape seems fine.
Rotating back to portrait causes all but the first tab to disappear. The user can no longer select the tab.
Rotating back to landscape causes the tabs to appear again.
Portrait however will only show the first tab.

Steps to Reproduce

1. Create a new Shell project

2. Add a tab with 2 or more items. e.g:
   <Tab Title="Items" Icon="icon_about.png"> <ShellContent Title="About" Icon="icon_about.png" Route="AboutPage" ContentTemplate="{DataTemplate local:AboutPage}" /> <ShellContent Title="Browse" Icon="icon_feed.png" ContentTemplate="{DataTemplate local:ItemsPage}" /> </Tab> </TabBar>

3)Rotate the device to landscape, then rotate back to portrait. Only the first tab is visible on the top.

Link to public reproduction project repository

https://github.com/developerfiveneosoftware/iosTabBug

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

iOS

Affected platform versions

ios 16+

Did you find any workaround?

No workaround yet.

It seems to work on iOS 15

Relevant log output

No response

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.