Issues

• Window placement persistence: Finish the test suite

  area-Windowingneeds-triageteam-Core
  Task

  microsoft/microsoft-ui-xaml#12392 · Filter by author JesseCol opened on Oct 24, 2026
  1

  

• Proposal: Add An Option to Easily Remove The TitleBar Caption Butttons

  feature proposalneeds-triage
  Feature

  microsoft/microsoft-ui-xaml#12391 · Filter by author TaqaTown opened on Oct 24, 2026
  1

• Window placement persistence: Support unpackaged apps

  needs-triage
  Task

  microsoft/microsoft-ui-xaml#12388 · Filter by author JesseCol opened on Oct 24, 2026
  1

  

• Window placement persistence: Complete custom storage support

  needs-triage
  Task

  microsoft/microsoft-ui-xaml#12390 · Filter by author JesseCol opened on Oct 24, 2026
  1

  

• Window placement persistence: Support custom monitor fallback

  area-Windowingneeds-triageteam-Core
  Task

  microsoft/microsoft-ui-xaml#12389 · Filter by author JesseCol opened on Oct 24, 2026
  2

  

• ItemsView throws ArgumentOutOfRangeException on the second removal after rebinding ItemsSource

  area-ItemsViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12386 · Filter by author tipa opened on Oct 24, 2026
  2

• UWP: a closed secondary view's thread can hang forever in RoUninitialize because CoreWindow destroy messages skip DefWindowProc (stale "handled" flag left by the XAML CoreWindow subclass)

  needs-triage
  microsoft/microsoft-ui-xaml#12384 · Filter by author FrayxRulez opened on Oct 24, 2026
  1

• Some AVIF image is not displayed correctly

  area-Imagesbugneeds-triageteam-Coreteam-Rendering
  Bug

  microsoft/microsoft-ui-xaml#12373 · Filter by author YexuanXiao opened on Oct 23, 2026
  1

• Chart control does not follow the fluent design language

  area-Chartingbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12362 · Filter by author bogdan-patraucean opened on Oct 21, 2026
  3

• High-Contrast theme and ExtentsContentIntoTitleBar cause missing titlebar top border

  area-TitleBararea-Windowingbugteam-Coreteam-Reach
  Bug

  microsoft/microsoft-ui-xaml#12360 · Filter by author YexuanXiao opened on Oct 21, 2026
  1

  

• TitleBar stays in its deactivated look on a foreground window that was activated before it reached the foreground

  needs-triage
  microsoft/microsoft-ui-xaml#12359 · Filter by author KamilDev opened on Oct 21, 2026
  1

• The TableView's Indicator moves along with the horizontal scrollbar

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12358 · Filter by author YexuanXiao opened on Oct 21, 2026
  2

• [WinUI 3, Windows App SDK 1.8 and 2.5] WriteableBitmap updates pile up 100-170 MB of shared surfaces while the display is off

  area-Imagesbugteam-Coreteam-Rendering
  Bug

  microsoft/microsoft-ui-xaml#12355 · Filter by author janne-hmp opened on Oct 20, 2026
  1

• TableView inline editing does not abide any design principles to make it feel like part of a polished control

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12354 · Filter by author bogdan-patraucean opened on Oct 20, 2026
  3

• TableView has an extra border on the right side of the table

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12353 · Filter by author bogdan-patraucean opened on Oct 20, 2026
  2

• TableView group by functionality is not displaying the group name

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12352 · Filter by author bogdan-patraucean opened on Oct 20, 2026
  2

• TableView is missing the bottom border on the header

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12351 · Filter by author bogdan-patraucean opened on Oct 20, 2026
  4

• Chart control does not render properly within bounds

  area-Chartingbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12350 · Filter by author bogdan-patraucean opened on Oct 20, 2026
  2

• Can't move windows before activation when using new Height and Width properties

  area-AppWindowbugteam-Core
  Bug

  microsoft/microsoft-ui-xaml#12345 · Filter by author eduardobragaxz opened on Oct 20, 2026
  3

  

• TitleBar RTL causes the window close button to be unresponsive

  area-TitleBarbugneeds-triageteam-CompInput
  Bug

  microsoft/microsoft-ui-xaml#12342 · Filter by author Gaoyifei1011 opened on Oct 20, 2026
  1

• AnimatedVisualPlayer: m_currentPlayFromProgress is never assigned, so Stop() jumps to progress 0

  area-AnimatedVisualPlayerneeds-triageteam-Controls
  microsoft/microsoft-ui-xaml#12340 · Filter by author KamilDev opened on Oct 20, 2026
  1

• XAML file touched without a content change makes every later build rerun MarkupCompilePass2

  area-XamlCompilerneeds-triageteam-Coreteam-Markup
  microsoft/microsoft-ui-xaml#12334 · Filter by author stefanpavlov opened on Oct 19, 2026
  2

• WinUI 2 WebView2 can crash on Tab due to invalid SendMessageW error check

  area-WebViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12323 · Filter by author Sergio0694 opened on Oct 16, 2026
  6

• ItemCollection can outlive its ItemsControl owner but mutation operations fail with E_UNEXPECTED

  area-Lifetimebugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12317 · Filter by author hoshiizumiya opened on Oct 16, 2026
  2

• TableView resize edge has wrong cursor

  area-TableViewbugneeds-triageteam-Controls
  Bug

  microsoft/microsoft-ui-xaml#12310 · Filter by author whiskhub opened on Oct 15, 2026
  1