Hi prasad,
We sincerely apologize for the delay in getting back to you.
We are unable to reproduce the issue. We have attached the video using which we tried to reproduce it. Can you please have a look on the video and provide some more information to reproduce the issue , it would be helpful for us to serve you better.
[Video link]:
http://www.syncfusion.com/downloads/Support/DirectTrac/89894/MaskedTextBoxVideo2023028979.zipPlease let us know if you have any other queries.
Regards,
Karthikeyan.