Im aware this situation is dificult to understand so im going to explain it the better as i could.

This is my Xaml:

 <igDock:XamDockManager Grid.Row="1" Name="xamDockManager1">
            <igDock:XamDockManager.Panes>

                <!-- Right bar -->
                <igDock:SplitPane igDock:XamDockManager.InitialLocation="DockedRight" x:Name="panelRightBar" SplitterOrientation="Horizontal">
                </igDock:SplitPane>
               

            </igDock:XamDockManager.Panes>

            <!-- Central container (Processes) -->
            <igDock:DocumentContentHost x:Name="centralProcContainer">
                <igDock:SplitPane>
                    <igDock:TabGroupPane>
                    </igDock:TabGroupPane>
                </igDock:SplitPane>
            </igDock:DocumentContentHost>

        </igDock:XamDockManager>

As you can see i have a splitPane with no content and a DocumentContentHost with no content to.

Im loading a userControl on the splitPane when this control initiates, this Usercontrol can load other Usercontrols to the central container dynamically. This control have a list of controls when i click on one it is loaded on the DocumentContentHost.

The problem is when i load the Usercontrols on the DocumentContentHost the Usercontrol on the splipanel freezes, but this onyl happens when the splitPane isn't pinned.

If you can give me some idea i appreciate.