Application exited after VSD Import

Hello, 

I try to import a VSD file in diagrams and after the import when i try to do savework, diagrams crash with the following error:

Warning : Failed to load Help Index help.aveva.com/.../Index.xml, response from website was La connexion sous-jacente a été fermée : Une erreur inattendue s'est produite lors de la réception.
FlexibleExplorer XML definitions loaded from: C:\AVEVA\Diagrams14.1.0\DiagramsFlexibleExplorerSample.xml
FlexibleExplorer error executing PML for node PrimaryVisibleMembers (PrimaryVisibleMembers) : CP: Syntax error
!!ExecuteFlexibleExplorerFunction(|!!getPrimaryVisibleMembers(/import_Test )|)
FlexibleExplorer error executing PML for node SecondaryClasses (SecondaryClasses) : CP: Syntax error
!!ExecuteFlexibleExplorerFunction(|!!getSchematicClassesForSecondary(/import_Test )|)
Diagrams
Unhandled Exception:

System.NullReferenceException: La référence d'objet n'est pas définie à une instance d'un objet.
à Infragistics.Win.UltraWinTree.UltraTreeNode.internalExpand(Boolean value, Boolean notify, Boolean updateVisibleNodes)
à Infragistics.Win.UltraWinTree.UltraTreeNode.Toggle()
à Infragistics.Win.UltraWinTree.ExpansionIndicatorUIElement.Toggle()
à Infragistics.Win.ExpansionIndicatorUIElement.OnMouseDown(MouseEventArgs e, Boolean adjustableArea, UIElement& captureMouseForElement)
à Infragistics.Win.ControlUIElementBase.ProcessMouseDownHelper(Object sender, MouseEventArgs e)
à Infragistics.Win.ControlUIElementBase.ProcessMouseDown(Object sender, MouseEventArgs e)
à Infragistics.Win.Utilities.ProcessEvent(Control control, ProcessEvent eventToProcess, EventArgs e)
à Infragistics.Win.UltraWinTree.UltraTree.OnMouseDown(MouseEventArgs e)
à System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
à System.Windows.Forms.Control.WndProc(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
à System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
C:\AVEVA\Diagrams14.1.0\diagrams.exe : A fatal error has been detected.
Diagrams must exit.
Application has exited

When diagrams is relaunched, the scdiag element has been created but no visio schema is associated. 

When i try to open it, i got an error message saying no vdx file founded in the APSdia folder. 

any idea how can i solved this ?

thx