Reorder in ListView many times create a disproportionate rounding in UWP

[FernandoVeras]

Describe the bug

When repeatedly reordering a single list item, at some point, the item ends up with extremely rounded borders, causing a visual glitch. This bug can be observed in the WinUI 2 Gallery itself

I was able to replicate the issue by editing a style that includes any Windows.UI.Xaml.Controls control. If the style contains, within the ControlTemplate at the topmost level of the visual tree (highest z-index), a Windows.UI.Xaml.Shapes component, such as a Rectangle, the bug does not occur.

Bellow we can see many styles that will occur the bug

With borders

Without borders

Bellow we can't reproduce the bug, using Shapes

With Rectangle

Why i can't use Shapes and "fix" the bug? The Shapes form don't have Corner radius, only RadiusX or RadiusX, so, we cant set TopLeft or TopRight CornerRadius to create a Style.

Steps to reproduce the bug

1. Go to WinUI 2 Gallery
2. Open List View with Drag drop example
3. Choose a item
4. Reorder the same item repeatedly

Expected behavior

The item still with original shape

Screenshots

NuGet package version

None

Windows version

Windows 10 (20H2): Build 19042, Windows 11 (24H2): Build 26100

Additional context

No response

[karkarl]

Does this bug also repro in WinUI 3? I am unable to repro there.

Unfortunately, we are not servicing WinUI 2 bugs unless it's a major regression, so will be closing this issue as out of scope.