An Exception is thrown when a connection is added into a container shape in an MVVM scenario. More specifically, when you create a new LinkViewModelBase<T> and use the AddItem method of the ContainerNodeViewModelBase<T> to add it inside the container.

Add some connection points to polyline connection. Move them. Then Select all with Ctrl + A. You will notice the Blue multiselection geometry is not with the correct geometry - it should be over the connection but it is not.

Fix is available in LIB Version 2014.3.1208.

 Adding RadDiagramConnection in RadDiagramContainerShape doesn't work correctly in some cases:

-The container shape bounds increase each time it is expanded, when the routing of the diagram is enabled (RouteConnections=True) and you have a connected RadDiagramShapes placed in a collapsible RadDiagramContainerShape, 

-When you try to connect shapes placed in a RadDiagramContainerShape the RadDiagramConnection is not added in the container items.

-When you delete a RadDiagramConnection that is placed inside a RadDiagramContainerShape with the Delete key and then undo (Ctrl+Z) the deletion, the shape is added in the diagram items instead of the container items collection.

Fixed in LIB version: 2014.2.0825

Available in LIB version: 2016.2.801

IsZoomEnabled property is not respected when the diagram is zoomed with touch/pinch gesture

Available in LIB version: 2014.3.1409