Maybe the observation is in some way related to Accessing IChartSeries.Name.AsCells Getter Modifies a Presentation Chart - #6 by andrey.potapov. But the effect is more severe because there is not obvious workaround.
A u…...Makes Undesired Modification Aspose.Slides Product Family slides-net...saving the same slide with Aspose.Slides, the chart gets report...