If I have understood the problem right although the layout is loaded correctly the Pane IsPinned
property is not updated accordingly. Most probably this is due to the fact that you have not set telerik:RadDocking.SerializationTag
to the RadPanes.
When you load the layout, all the elements that are not marked with SerializationTag
property are removed and new components are created instead. That is the reason why you should mark your panes with the SerializationTag
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