We are seeing the following exception for files that use the attached slide template.
Exception message:
Parameter is not valid.
Exception stack trace:
at System.Drawing.Graphics.set_Transform(Matrix value)
at Aspose.Slides.TextFrame.Draw(Image img, Matrix lastTransform, IDrawingControl drawingControl, ArrayList ancestors, ArrayList rotations, HeaderFooter headerFooter, Int32 slideNumber)
at Aspose.Slides.Rectangle.Draw(Image img, Matrix lastTransform, IDrawingControl drawingControl, ArrayList ancestors, ArrayList rotations, HeaderFooter headerFooter, Int32 slideNumber)
at Aspose.Slides.Slide.GetThumbnail(Size imageSize, Rectangle window, IDrawingControl drawingControl)
at Aspose.Slides.Slide.GetThumbnail(Double scaleX, Double scaleY)