Initially HeaderDropDownMenu button is shown on window's caption bar of docked RadPanes but after undocking that button mysteriously disappears. The RadPane is still "Dockable" but for some reason there is no HeaderDropDownMenu button on it. This behavior leads to user confusion.

The compasses of the other ToolWindow appear.

This happens in particular scenario after saving/loading the layout.

Setting TabStripPlacement should be possible not only for RadPaneGroups but for the entire RadDocking control. That TabStripPlacement value should be used as default value for all the auto generated RadPaneGroups.

Place one RadPane in a RadPaneGroup. Bind IsHidden property of this RadPane, and set the default value to True. If you change it to False, the width of the AutoHide area is not set to the correct one.

In OS two monitors are configured: monitor 1 (3840x2160) scale: 200% and monitor 2 (1920x1200) scale 100%.

Our wpf application has a main window, maximized on screen 1 and a child window maximized on screen 2.

In the app.manifest we use per monitor dpi awareness:

<application xmlns="urn:schemas-microsoft-com:asm.v3">
  <windowsSettings>
    <dpiAware xmlns="http://schemas.microsoft.com/SMI/2005/WindowsSettings">True/PM</dpiAware>
    <dpiAwareness xmlns="http://schemas.microsoft.com/SMI/2016/WindowsSettings">PerMonitorV2,PerMonitor</dpiAwareness>
  </windowsSettings>
</application>

Both windows have a RadDocking instance with a docked RadPane like:

<Grid>
  <telerikDocking:RadDocking Name="Docking"                              
                             HasDocumentHost="True" 
                             telerik:DragDropGroup.Name="VDDragDropGroup">
    <telerikDocking:RadDocking.DocumentHost>
      
            ...
          
    </telerikDocking:RadDocking.DocumentHost>
    <telerik:RadSplitContainer InitialPosition="DockedBottom">
      <telerik:RadPaneGroup>
        <telerik:RadPane Header="Test Panel" IsDockable="True">
          <Border Background="Green">
            <TextBlock Text="Test Panel" HorizontalAlignment="Center" VerticalAlignment="Center"/>
          </Border>
        </telerik:RadPane>
      </telerik:RadPaneGroup>     
    </telerik:RadSplitContainer>
  </telerikDocking:RadDocking>
</Grid>

If you drag and move the docked panel from screen 2 to screen 1 the compass at screen 1 is only shown if the mouse position is in the first quadrant of screen 1 . The compass is shown on the correct place but cannot be activated, so that no dropping is possible.

Without unsing per monitor dpi awareness everything works fine. Unfortunately we must use per monitor dpi awareness for our application.

This bug is also reproducable in V2023.3.1218.

Regions in panes content are not resolved when the pane is unpinned and collapsed. This happens only when you change the regions in runtime while the pane is unpinned and collapsed.

Provide a sorted collection of the RadPane instances which would be activated by the built-in ActivationManager. 
This would make it possible to get the order of the currently shown ToolWindow instances.