[MAUI]I1_Layout - The layout of the Item is not in the same horizontal position when the 'UpdateColumns' button is clicked multiple times.

[kevinxufei]

Description

Affected case: I1 - Vertical Grid for Multi Span Layout.

The layout of the Item is not in the same horizontal position when the 'UpdateColumns' button is clicked multiple times.

Steps to Reproduce

1.Deploy https://devdiv.visualstudio.com/Pkgs/_git/VS.TestAssets.Xaml?path=/Assets/Projects/ManualMauiTests to iOS/Maccatalyst.
2.Navigate to 'I CollectionView' ->'I1 Layout' -> 'Vertical Grid for Multi Span Layout.'.
3 Click the 'UpdateColumns' button more than 3 times, the Item layout is not in the same horizontal position.

Actual Behavior:
The layout of the Item is not in the same horizontal position when the 'UpdateColumns' button is clicked multiple times.

Expected Behavior:
Click the 'UpdateColumns' button and the Item layout will not be out of place.

Link to public reproduction project repository

https://devdiv.visualstudio.com/Pkgs/_git/VS.TestAssets.Xaml?path=/Assets/Projects/ManualMauiTests

Version with bug

Microsoft.Maui.Controls 8.0.80-ci.net8.24368.3

Is this a regression from previous behavior?

Not a regression, the issue also reproduced on 8.0.70 & 8.0.3.

Affected platforms

iOS, macOS

[github-actions]

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[praveenkumarkarunanithi]

This issue has been verified in Visual Studio Code 1.102.1 with MAUI version 9.0.90. It is reproducible only on macOS with CollectionView v1 (CV1). It cannot be reproduced on iOS with CV1, iOS with CV2, or macOS with CV2.