Reproduction of the problem

Open this web site:
https://demos.telerik.com/kendo-ui/spreadsheet/datasource

And follow the steps provided here:
https://www.screencast.com/t/UdEKYqIve

Current behavior

The first added cell value (or row) is removed when the user deletes an empty row.
If the ID is entered, the result is even stranger:
https://www.screencast.com/t/osmVOiY7al

Expected/desired behavior

It should behave and function like Excel. I think with local/static binding there are no issues.