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CsWinRT 3.0 crashes, assumes ActivateInstance instance implements default interface

Status: Open.

#2477 In microsoft/CsWinRT;

· riverar opened on Jun 28, 2026

Set DisableRuntimeMarshalling and IsAotCompatible defaults via package .targets instead of emitting them in generated source

CsWinRT 3.0

Status: Open.

#2463 In microsoft/CsWinRT;

· Sergio0694 opened on Jun 21, 2026

Bug: Binding issue

Status: Open.

Bug

#2458 In microsoft/CsWinRT;

· premiaware opened on Jun 19, 2026

Bug: [CSWinRT 3]: Crash when project is built as a NativeAOT library

Status: Open.

Bug

#2441 In microsoft/CsWinRT;

· darkhz opened on Jun 15, 2026

Bug: Reentracy checks conflict with .Net synchronization mechanisms (e.g. lock), causing random crashes in apps

Status: Open.

Bug

#2422 In microsoft/CsWinRT;

· benstevens48 opened on May 25, 2026

Proposal: Use Span for WindowsRuntimeBufferMarshal.TryGetDataUnsafe

Status: Open.

Feature

#2416 In microsoft/CsWinRT;

· huoyaoyuan opened on May 7, 2026

It is hoped that the Microsoft.Windows.SDK.NET.Ref package suitable for the 28000 SDK can be provided.

Status: Open.

Feature

#2414 In microsoft/CsWinRT;

· Gaoyifei1011 opened on May 1, 2026

[CsWinRT 3] ICustomPropertyProvider is not added to all CCWs

CsWinRT 3.0

Status: Open.

#2386 In microsoft/CsWinRT;

· ahmed605 opened on Apr 10, 2026

Bug: InvalidCastException because failed to create a CCW in AOT for IAsyncOperation<>

Status: Open.

Bug

#2378 In microsoft/CsWinRT;

· zhuxb711 opened on Apr 1, 2026

CsWinRT3 Code IntelliSense is not working

CsWinRT 3.0

needs-author-feedback

Status: Open.

Bug

#2375 In microsoft/CsWinRT;

· Gaoyifei1011 opened on Mar 29, 2026

Bug: Trying to enumerate the result of DisplayArea.FindAll() throws an InvalidCastException

external

Status: Open.

Bug

#2373 In microsoft/CsWinRT;

· benstevens48 opened on Mar 27, 2026

Bug: Unexpected behavior of CollectionViewSource with grouping

Status: Open.

Bug

#2304 In microsoft/CsWinRT;

· DmitryProskurin opened on Feb 27, 2026