When I use paging + filtering on the grid, and I edit my data, that makes the view change size, the pager is not updated.
https://dojo.telerik.com/@foxontherock/iminugeH/3
Click on the "filter" button, that changes all "number" field to make them visible on the view.
When you click on the pager, it correctly refreshes.
That can be fixed by adding a "kgrid.pager.refresh()" on the grid dataBound, but I think it should be fixed on your side.