The assignment tabs of User Maintenance and User Group Maintenance retrieved at most 100 records, so assigned users or groups beyond that limit were missing from the grid. The record count on the tab header was calculated separately and remained correct, which made the shortfall easy to overlook, and neither reloading the screen nor filtering the grid brought the missing records in, because filtering, sorting and paging were applied to the incomplete set that had already been retrieved. The assignment tabs now retrieve the complete set of assigned records.