Hi Robert,
We regret for the inconvenience caused. I have tested for this issue in Version 6.3.0.6 and was able reproduce this issue with ChartSeries.SummaryInfo. However I am glad to inform you that this issue has been fixed in our later version (from version 6.3.0.30 and above).
You can download the later versions from the following link.
http://www.syncfusion.com/downloads/product/versionhistory.aspxUnlock key:If your Essential Studio license is current, you will be able to obtain the key to install this version from your account in DirectTrac. Otherwise, please contact your Syncfusion Sales Representative or e-mail salessupport@syncfusion.com
Kindly let us know if you have any problem in this version. Thanks for your patience.
Regards,
Manohari.R