Hi,
the issue occurs only if series.Marker.Format.Fill.FillType is set to a value other than NotDefined.
I attached a test app for reproduction.
AsposeSlideMarkerBug.7z (9,5 MB)
This may be a duplicate of Saving a Pr…...Presentation Containing a Bubble Chart Crashes with ArgumentException...Family slides-net , slides-chart jaenichen May 8, 2025, 11:14am...