We have
considered the reported issue " An exception occurs when rendering the
DatePicker with the Mask property enabled" as a bug from our end, and fix for this issue is
scheduled for inclusion in our upcoming patch release in mid-September 2024.
You
can now track the status of the feedback through the below link,
https://www.syncfusion.com/feedback/60770
Disclaimer:
“Inclusion of this solution in the weekly release may change due to other
factors including but not limited to QA checks and works reprioritization.”