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[ARM64] WPF transparent window swaps red and blue color channels with hardware rendering

Status: Open.

#11847 In dotnet/wpf;

· garytcfsh opened on Aug 19, 2026

Adding a child during a layout pass throws in Canvas, and the added child is never measured in any panel

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

Status: Open.

#11846 In dotnet/wpf;

· javierdlg opened on Aug 17, 2026

ComboBox with Fluent theme enabled doesn't update its items/dropdown when bound collection is changed

area-StylingIndicates if an issue or a PR is for style changesIndicates if an issue or a PR is for style changes

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

Status: Open.

#11844 In dotnet/wpf;

· SuperBrain opened on Aug 15, 2026

Empty WPF app crashes when published as a self-contained single file on .NET 11 Preview 7

area-NetSDK

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

regressionstatus: This issue is a regression from a previous build or releasestatus: This issue is a regression from a previous build or release

Status: Open.

#11842 In dotnet/wpf;

· FIFER-Mods opened on Aug 14, 2026

WPF/XPS font handling error that still worked a few week ago

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:1Work that is critical for the release, but we could probably ship withoutWork that is critical for the release, but we could probably ship without

regressionstatus: This issue is a regression from a previous build or releasestatus: This issue is a regression from a previous build or release

Status: Open.

#11836 In dotnet/wpf;

· jbe2277 opened on Aug 12, 2026

GlyphTypeface.ComputeSubset rejects stock Windows fonts (Calibri, Cambria, Constantia, Corbel) after TtfDelta bounds-check hardening

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:0Work that we can't release withoutWork that we can't release without

regressionstatus: This issue is a regression from a previous build or releasestatus: This issue is a regression from a previous build or release

Status: Open.

#11834 In dotnet/wpf;

· JeppeJepsen opened on Aug 12, 2026

In wpf with vb, there is no closing of a popup opened from another popup with the Staysopen property set to true.

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

Status: Open.

#11824 In dotnet/wpf;

· Perpete opened on Aug 8, 2026

PresentationBuildTasks emits BamlRecordType.Property (5) instead of PropertyWithConverter (36) for Nullable<T> properties

area-infrastructure

BugProduct bug (most likely)Product bug (most likely)

Cost:SWork that requires one engineer up to 1 weekWork that requires one engineer up to 1 week

PR Proposed

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

tenet-compatibilityIncompatibility with previous versions or with WPF for .NET FrameworkIncompatibility with previous versions or with WPF for .NET Framework

Status: Open.

Bug

#11815 In dotnet/wpf;

· AndreyMarten opened on Aug 4, 2026

JpegBitmapEncoder default QualityLevel issue

BugProduct bug (most likely)Product bug (most likely)

Cost:SWork that requires one engineer up to 1 weekWork that requires one engineer up to 1 week

Priority:3Work that is nice to haveWork that is nice to have

Status: Open.

#11803 In dotnet/wpf;

· OlexandrPavliuk opened on Jul 28, 2026

[Fluent] Some animations play even when animation effects are disabled in Windows Settings

BugProduct bug (most likely)Product bug (most likely)

Cost:MWork that requires one engineer up to 2 weeksWork that requires one engineer up to 2 weeks

Priority:2Work that is important, but not critical for the releaseWork that is important, but not critical for the release

Status: Open.

#11798 In dotnet/wpf;

· aquinn39 opened on Jul 21, 2026

Editable ComboBox with Fluent theme is a keyboard trap: Shift+Tab does not move focus to the previous control

AccessibilityAn issue related to accessibility enhancements or blockers.An issue related to accessibility enhancements or blockers.

Status: Open.

#11777 In dotnet/wpf;

· wnvko-msft opened on Jul 13, 2026

CoerceValueCallback call after source updated causes source got a wrong value

Resolution-Answered

Status: Open.

#11776 In dotnet/wpf;

· ahdung opened on Jul 13, 2026