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Uno Platform Health Status
#18353 · jeromelaban opened on Oct 1, 2024
🍀 Opened Microsoft issues tracking
#982 · jeromelaban opened on May 29, 2019
2
[Epic] Rider issues tracking
#15226 · jeromelaban opened on Jan 26, 2024

Boom
unoplatform/uno#24942 · opened on Oct 2, 2026
Font Fallback Maps Validation fails on every PR when notofonts changes upstream
Bug
unoplatform/uno#24940 · opened on Oct 2, 2026
[Skia] DeviceInformation.FindAllAsync(DeviceClass) throws NotImplementedException
unoplatform/uno#24939 · opened on Oct 2, 2026
[Skia] MediaPlayer.SystemMediaTransportControls throws NotImplementedException
unoplatform/uno#24938 · opened on Oct 2, 2026
Indexer binding path with a '.' in the key ([a.b]) is split into two items and binds nothing
unoplatform/uno#24937 · opened on Oct 2, 2026
Uno's [TypeConverter] types stop resolving in a secondary AssemblyLoadContext: BitmapIcon renders nothing and DiagnosticsOverlay throws out of Window.Activate()
unoplatform/uno#24935 · opened on Oct 2, 2026
ScrollViewer: dragging the scrollbar thumb never raises ViewChanged with IsIntermediate=true, and releasing it raises no final ViewChanged
unoplatform/uno#24934 · opened on Oct 2, 2026
element.Resources lookup returns the built-in system value instead of the app's override (e.g. ButtonPadding 8,4,8,5 instead of Fluent 11,5,11,6)
unoplatform/uno#24933 · opened on Oct 2, 2026
A control subclass defined only in code does not get its base type's implicit style (e.g. class MyButton : Button loses the Fluent style)
unoplatform/uno#24932 · opened on Oct 2, 2026
Win32: a second collectible ALC generation crashes with "RegisterClassEx failed: Class already exists" because window classes are never unregistered
unoplatform/uno#24931 · opened on Oct 2, 2026
Win32: an exception thrown from OnLaunched is swallowed, leaving a windowless process running and no UnhandledException
unoplatform/uno#24930 · opened on Oct 2, 2026
Creating a Skia UI element without a started host fails with an opaque NullReferenceException in the Control static constructor
unoplatform/uno#24929 · opened on Oct 2, 2026
Storyboard.Begin() silently ignores an unresolvable or wrong-type TargetProperty instead of throwing like WinUI
unoplatform/uno#24928 · opened on Oct 2, 2026
Flaky runtime test: Given_TextBox.When_CanPasteClipboardContent_WithText fails intermittently on Android Skia CI
unoplatform/uno#24927 · opened on Oct 2, 2026
[6.7] Win32 SystemBackdrop (Mica/Acrylic) leaves stale pixels after navigation or resize
unoplatform/uno#24926 · opened on Oct 2, 2026
[6.7] NavigationView throws NullReferenceException in UpdateTitleBarPadding when Content is replaced before the control is in a window
unoplatform/uno#24925 · opened on Oct 2, 2026
1
Control.CharacterSpacing is a no-op on Skia and is not inherited by the text inside controls
unoplatform/uno#24924 · opened on Oct 2, 2026
CoreApplication.Exit() from a secondary-ALC app closes every window / kills the host process
unoplatform/uno#24923 · opened on Oct 2, 2026
ApiExtensibility.Register keeps the first registration forever, pinning the first ALC generation and ignoring later ones
unoplatform/uno#24922 · opened on Oct 2, 2026
Linux hosts leak on teardown: DRM card fd not closed, X11 IME D-Bus connection not disposed, static ALC cleanup hook never cleared
unoplatform/uno#24921 · opened on Oct 2, 2026
Win32: closed windows stay rooted by _hwndToWrapper and an unrevoked RegisterDragDrop, so they (and collectible ALCs) never get collected
unoplatform/uno#24920 · opened on Oct 2, 2026
1
ListView/GridView ignores the Navigation* keys and gamepad shoulder/trigger paging keys
unoplatform/uno#24919 · opened on Oct 2, 2026
TextBlock re-parses NoWrap text in arrange when only the width changed, wasting memory on huge single lines
unoplatform/uno#24918 · opened on Oct 2, 2026
A throwing EffectiveViewportChanged handler leaves a null entry in the queue and wedges layout
unoplatform/uno#24917 · opened on Oct 2, 2026
1
SplitButton uses the legacy RS1 template, so the chevron is a TextBlock instead of an AnimatedIcon (7.0)
unoplatform/uno#24916 · opened on Oct 2, 2026
1

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Issues

Issues

Boom

Font Fallback Maps Validation fails on every PR when notofonts changes upstream

[Skia] DeviceInformation.FindAllAsync(DeviceClass) throws NotImplementedException

[Skia] MediaPlayer.SystemMediaTransportControls throws NotImplementedException

Indexer binding path with a '.' in the key ([a.b]) is split into two items and binds nothing

Uno's [TypeConverter] types stop resolving in a secondary AssemblyLoadContext: BitmapIcon renders nothing and DiagnosticsOverlay throws out of Window.Activate()

ScrollViewer: dragging the scrollbar thumb never raises ViewChanged with IsIntermediate=true, and releasing it raises no final ViewChanged

`element.Resources` lookup returns the built-in system value instead of the app's override (e.g. `ButtonPadding` 8,4,8,5 instead of Fluent 11,5,11,6)

A control subclass defined only in code does not get its base type's implicit style (e.g. `class MyButton : Button` loses the Fluent style)

Win32: a second collectible ALC generation crashes with "RegisterClassEx failed: Class already exists" because window classes are never unregistered

Win32: an exception thrown from OnLaunched is swallowed, leaving a windowless process running and no UnhandledException

Creating a Skia UI element without a started host fails with an opaque NullReferenceException in the Control static constructor

`Storyboard.Begin()` silently ignores an unresolvable or wrong-type `TargetProperty` instead of throwing like WinUI

Flaky runtime test: `Given_TextBox.When_CanPasteClipboardContent_WithText` fails intermittently on Android Skia CI

[6.7] Win32 SystemBackdrop (Mica/Acrylic) leaves stale pixels after navigation or resize

[6.7] NavigationView throws NullReferenceException in UpdateTitleBarPadding when Content is replaced before the control is in a window

Control.CharacterSpacing is a no-op on Skia and is not inherited by the text inside controls

CoreApplication.Exit() from a secondary-ALC app closes every window / kills the host process

ApiExtensibility.Register keeps the first registration forever, pinning the first ALC generation and ignoring later ones

Linux hosts leak on teardown: DRM card fd not closed, X11 IME D-Bus connection not disposed, static ALC cleanup hook never cleared

Win32: closed windows stay rooted by `_hwndToWrapper` and an unrevoked `RegisterDragDrop`, so they (and collectible ALCs) never get collected

`ListView`/`GridView` ignores the Navigation* keys and gamepad shoulder/trigger paging keys

TextBlock re-parses NoWrap text in arrange when only the width changed, wasting memory on huge single lines

A throwing EffectiveViewportChanged handler leaves a null entry in the queue and wedges layout

SplitButton uses the legacy RS1 template, so the chevron is a TextBlock instead of an AnimatedIcon (7.0)