I have been trying to generate chart with negative data in clustered Column. the series is been plot however the color of the series becomes white even when i have specified a colour.
I have also tried to set invertIfNegative on the series but that does not help
I have observed your comments. Can you please share source presentation, generated result, sample project and environment details with us so that we can further investigate to help you out. Also please share which Aspose.Slides version you are using on your end.