Akira,
We appreciate your patience.
We are glad to announce that our Essential Studio® 2025 Volume 3 SP 2 Release v31.2.12 is rolled out and is available for download under the following link.
Essential Studio® 2025 Volume ... | Announcements Forums | Syncfusion®
The fix for the issue “Custom column value as digit but render in table as date” has been rolled out in our Volume 3 SP 2 Release v31.2.12. So, upgrade to our latest version to resolve the problem.
Root cause: The issue occurred in the processCustomColumn() function, where string date validation for custom column is not properly handled leads to occurs the reported issue.
Sample link: StringConvertedDate (duplicated) - StackBlitz
Release notes: Essential Studio for React Release Notes
We thank you for your support and appreciate your patience in waiting for this release. Please get in touch with us if you require any further assistance.
Regards,
Sridharan