When Saving and Loading a layout which has empty DocumentHost an ArgumentOutOfRangeException is thrown
Removing item from the PanesSource collection causes NullReferenceException
Dynamically adding RadPane to PaneGroup, the header of the pane does not appear on the second added pane.
To workaround this the OnApplyTemplate() method can be called after the RadPane is added to the RadPaneGroup.
The PaneHeader is shown and then immediately collapsed. Setting the PaneHeader to null can be used as a workaround if the project uses the default theme.