Using QuickApps 6.2 (Build 2013.10.29) you are unable to use pagination with Group by and Paging Mode as NextRev. Only the first page of the result set is being displayed while switching to next page does not change the result set and shows the same set of records.
Title
Unable to use pagination with Group by and Paging ModeDescription
Cause
This issue has been verified as Defect TF00331620 and is a result of Telerik Controls.Resolution
WORKAROUND:
Install QuickApps 6.3 as Telerik Controls have been upgraded in this version.