I'm experiencing an issue that was that is similar to the issue found at https://www.telerik.com/forums/client-side-service-binding-11-empty-rows. I have a radgrid that I'm binding to JSON results on the client-side. Regardless of the number of records, the record count always reads 11 items in 2 pages.
I've followed all of the recommendations in the previous issue, but I don't think there was ever any actual resolution to that problem.
Here's what I have, and a screenshot to show the symptoms: