This reproduces only if RadRibbonWindow is used with the default WPF Window's theme, instead of the Telerik's theme. Also, this reproduces only in the themes after Expression_Dark (starting from Windows8). You can find a list of the Telerik themes ordered chronologically in the help documentation.

If the RadRibbonWindow is maximized on the second (right) monitor and you click the application menu button to open the ApplicationMenu, the menu displays on the first (left) monitor.

To work this around enable the Telerik's RadRibbonWindow theming by setting the IsWindowsThemeEnabled static property to False.

static MainWindow()
{
    IsWindowsThemeEnabled = false;
}

The MinimizeButton of the RadRibbonView have mismatched states(When the ribbon is collapsed the arrow should be pointing Up, and when the ribbon is collapsed should be pointing Down) not the other way around

Drawing graphics inside the RadRibbonWindow causes performance hit. More information and videos in the support thread

The RadRibbonBackstage is closed when EscapeKey is pressed and the KeyTipService.IsKeyTipsEnabled is set to "True" and the Backstage closing logic on escape is dissabled

Fixed in Q3 2014

When we have a RibbonWindow with the Office2013 theme applied and palette set to (for example) LightGray the background of the window is not changed.

When the RadRibbonView is hosted in RadRibbonWindow under Windows7, the top part of the default inner border of the RadRibbonWindow is cut.

RadRibbonSplitButton text is too close to the border of the button due to lacking padding in the TextBlock holding text. Also the Text is a few pixels off vertically compared to the other ribbon buttons.

RibbonWindow leaves empty spaces between the border and the content when used on Windows8 machine and the project targets .NET 4.0

The app starts with the backstage open (IsBackstageOpen="true" for RadRibbonView). After closing the backstage RadRibbonView MinimizeButtons, both in QuickAccessToolbar and on the RadRibbonView, stay disabled. Expectation is those should get enabled after the backstage is closed.   


Available in LIB version: 2014.3.1409

If a RibbonView is used in a WPF, where the Window SizeToContent property is set to WidthAndHeight, the Window takes too much space.

A  "Cannot access Freezable 'System.Windows.Media.LinearGradientBrush' across threads because it cannot be frozen." exception is thrown when you try to open the window for second time using ATEasy software.

CUIT cannot access content (as groups and buttons) hosted by every tab, except the first one.

Available in Q3 2014 SP

When the RibbonView is hosted in RibbonWindow and IsWindowsThemeEnabled is set to true, if the themes are switched at runtime (from Office2013 or VisualStudio2013 to another theme), the RibbonTabs and Quick Access Toolbar are hidden.

RibbonView galleries should support keyboard navigation, for example, up/down buttons should move the focus to the gallery, and move selection accordingly.

Available in LIB version: 2014.3.1319

A black border is displayed around the window when SizeToContent is set on Windows7  with disabled aero.

A recursive call to Automation Peer API is not valid exception is thrown


Available in LIB version: 2014.3.1215

Null reference exception is thrown when we set KeyTip on a Collapsed RibbonGroup 

Available in LIB version: 2014.3.1409