Big design issue when upgrading from .NET MAUI 10 Preview 5 to Preview 6

[dmm-l-mediehus]

Description

Upgrading Nuget package of 'Microsoft.Maui.Controls' from 10.0.0-preview.5.25306.5 to 10.0.0-preview.6.25359.8 gives me a lot of design issues in my whole app that uses CollectionView with TemplateSelectors.

Video demonstration:
Microsoft.Maui.Controls with Version 10.0.0-preview.5.25306.5 (Design working fine, looks good):
https://github.com/user-attachments/assets/f06eaaf8-bcd3-47fb-99d4-140b1d7f0a81

Microsoft.Maui.Controls with Version 10.0.0-preview.6.25359.8 (Design breaks):
https://github.com/user-attachments/assets/d4df1656-f82c-44d1-a7d2-a49d5b8156fd

<CollectionView Grid.Row="1" ItemsSource="{Binding MainPageItems}" ItemTemplate="{StaticResource MainPageTemplateSelector}">
    <CollectionView.EmptyView>
        <StackLayout HorizontalOptions="Center" Margin="10">
            <ActivityIndicator IsRunning="True" IsVisible="True" Color="{StaticResource Primary}" WidthRequest="60" HeightRequest="60" />
        </StackLayout>
    </CollectionView.EmptyView>
</CollectionView>

I even tried running 'dotnet workload update', but issue persists.

Steps to Reproduce

1. Upgrade 'Microsoft.Maui.Controls' from 10.0.0-preview.5.25306.5 to 10.0.0-preview.6.25359.8

Link to public reproduction project repository

No response

Version with bug

10.0.0-preview.6

Is this a regression from previous behavior?

Yes, this used to work in .NET MAUI

Last version that worked well

10.0.0-preview.5

Affected platforms

Android

Affected platform versions

Android 15

Did you find any workaround?

Downgrade Microsoft.Maui.Controls to 10.0.0-preview.5.25306.5

Relevant log output

[dmm-l-mediehus]

Edit:
I noticed that .NET MAUI in my machine is Preview 5, and design issue on CollectionView happens when nuget package is upgraded to Preview 6. Could this be the issue, if so do I need to wait until .NET MAUI is upgradable with dotnet workload update?

[dotnet-policy-service]

Hi @@dmm-l-mediehus. We have added the "s/needs-repro" label to this issue, which indicates that we require steps and sample code to reproduce the issue before we can take further action. Please try to create a minimal sample project/solution or code samples which reproduce the issue, ideally as a GitHub repo that we can clone. See more details about creating repros here: https://github.com/dotnet/maui/blob/main/.github/repro.md

This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.