The RibbonView TabStrip ScrollViewer is displayed unexpectedly when there are inactive ContextualGroups.

Compress/decompress of specific file using streams can be wrong when the compression level is specified to Deflated.

SelectedCells collection is not updated correctly after GridView's ItemsSource changed

When the groups of a RadRibbonTab are collapsible the scroll is shown just before the groups collapses.

When the RadRibbonView ItemsSource is populated with RadRibbonTabs and one of the tab items IsSelected property is set to True that item no longer can be selected.

When RowStyle is applied to RadGridView, AlwaysVisibleRow part disappears after adding a new item.  The problem occurs only when the style is applied explicitly. 

Silverlight uses short types internally for shapes' sizes and when the size of the line grows up to more than the short's max, extra lines are rendered. A possible work-around is to limit the zoom. 

If the Telerik.Windows.Controls assembly is referenced from a local folder whilst the Telerik.Controls.Navigation.dll is referenced from the installation folder, as soon as a control from Navigation is added in a UserControl, a design-time exception is raised.
The excpetion is "Error HRESULT E_FAIL has been returned from a call to a COM component."
StackTrace:    at MS.Internal.XcpImports.CheckHResult(UInt32 hr)
   at MS.Internal.XcpImports.Collection_InsertValue[T](PresentationFrameworkCollection`1 collection, UInt32 index, CValue value)
   at MS.Internal.XcpImports.Collection_InsertDependencyObject[T](PresentationFrameworkCollection`1 collection, UInt32 index, DependencyObject value)
   at System.Windows.PresentationFrameworkCollection`1.InsertDependencyObject(Int32 index, DependencyObject value)
   at System.Windows.Controls.UIElementCollection.InsertInternal(Int32 index, UIElement value)

Currently, when a tool is executed it is invoked again after commit. The tool cannot be canceled from sequential execution.

Custom color does not gets applied in the exported file (no matter if you export to .xslx or image file like .png ). The problem occurs if Alpha Transparency of the color is specified. 

The XAML team has recently reviewed this issue and will not be addressing it as at this time the team is focusing on the bugs impacting the highest number of developers. If you have encountered this issue and it is blocking for your work please contact us through the support ticketing system with details on your setup and a reference to this item.

Workaround:
Set the Background of the RadCartesianChart to White.

It would be nice the DCTDecode filter to handle correctly images that are encoded in CMYK colorspace.

Exception is thrown if the size of Fluid is 0 and you maximize the window.

When IsTabStop = False the focus is going through :

 *  RadAutoCompleteBox
 *  RadComboBox (when IsEditable is set to True)
 *  RadNumericUpDown
 *  RadMaskedTextInput
 *  RadDatePicker
 *  RadDateTimePicker

Available in the R3 2016 Release.

For RadAutoCompletebox, RadComboBox, RadDateTimePicker and RadNumericUpDown, the TabNavigationExtensions.IsTabStop attached property should be used to indicate whether the control is included in the tab navigation cycle.

For RadMaskedTextInput, MaskedInputExtensions.IsEditorTabStop attached property should be used.

The LocalizationManager doesn't apply the ResourceKey if the Content/Text properties are defined in XAML between the opening and closing tag of the control - for example Button or a TextBlock control.

The MaskedInput controls cannot be extracted from the Telerik.Windows.Controls.Input.dll

Extend the WP7 support. Add support for each assembly and control.