[Chart contains] two stackedsplinearea series on two different value axis. As result we get something like additional series on the Chart. It isn't reproduce on another stack-like series
Chart - A stacked spline area shows an extra series
Answers approved by DevExpress Support
We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.
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Hello,
Thank you for pointing out this issue to us. I have reproduced it and passed this ticket to our developers for further research.