Win32 exception in WinUIEdit.dll when trying to create list with active Hebrew input method

[tipa]

Describe the bug

App crashes when using a Hebrew input method in Windows and trying to create a right-aligned list in a RichEditBox using Microsoft.UI.Text.ITextParagraphFormat

Steps to reproduce the bug

Select Hebrew keyboard input:

<RichEditBox x:Name="textBox"/>

var paragraphFormat = textBox.Document.Selection.ParagraphFormat;
paragraphFormat.Alignment = ParagraphAlignment.Right;
paragraphFormat.ListType = MarkerType.Bullet;

Example project: richeditbox_crash.zip

Expected behavior

No crash

Screenshots

Exception is trhown in WinUIEdit.dll

The program '[44220] richeditbox_crash.exe' has exited with code 3221225477 (0xc0000005) 'Access violation'.

NuGet package version

WinUI 3 - Windows App SDK 1.7.1: 1.7.250401001

Windows version

Windows 11 (24H2): Build 26100

Additional context

I think the same crash also happens on UWP (which is what I am currently still using) but I wasn't able yet to narrow it down to a minimal example. Is there any hope that this kind of crash is also fixed for UWP? If so, I can try to set up a repro for that as well.

[tipa]

Was now also able to reproduce it reliably on UWP

It might be worth noting that it only happens when running in x64, but not in x86.
As with the WinUI example, this only happens when Hebrew input method is active.

Example project: App1.zip

[Hemantxk]

Hi @tipa thanks for reporting this issue. It seems to be related to compiler optimization. We have fixed issue in WinUI side and you can validate it using WindowsAppSDK 1.8 experimental 3 ~ https://www.nuget.org/packages/Microsoft.WindowsAppSDK/1.8.250610002-experimental3

[tipa]

The crash appears to be resolved - thanks!