Hi Domantas,
Thanks for contacting Syncfusion support.
We have already logged “Validation required is neglected when hit enter on a empty numerictextbox” as a defect and the fix will be included in our Essential Studio Volume 2, 2019 release which is expected to be rolled out by end of June 2019.
You can now track the current status of your request, review the proposed resolution timeline, and contact us for any further inquiries through this link
Regards,
Pavithra S.