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PNI Digital Media
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Intermittent System.ArgumentException: Parameter is not valid on UltraPictureBox
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We have a .Net 3.5 WinForms app using a UltraWinEditors.v7.3 UltraPictureBox, and it is crashing intermittently with:

System.ArgumentException: Parameter is not valid.
   at System.Drawing.Image.get_Width()
   at System.Drawing.Image.get_Size()
   at Infragistics.Win.EmbeddableImageRendererUIElement.PositionChildElements()
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(ControlUIElementBase controlElement, Boolean recursive)
   at Infragistics.Win.UIElement.VerifyChildElements(Boolean recursive)
   at Infragistics.Win.ControlUIElementBase.VerifyIfElementsChanged(Boolean verify, Boolean syncMouseEntered)
   at Infragistics.Win.ControlUIElementBase.get_CurrentCursor()
   at Infragistics.Win.UltraControlBase.get_Cursor()
   at System.Windows.Forms.Control.WmSetCursor(Message& m)
   at System.Windows.Forms.Control.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

This is a JIT error; it is not being caught by the catch clause in Main or Windows.Forms.Application.ThreadException handler.

The error is very intermittent; we can be using the pictureBox for hours, then suddenly the app shuts down with an "Unhandled exception ... in your application" dialog. It is triggered by something we are doing; if no one touches the app it never crashes, but there is no way to reliably cause the crash.