UITableViewCell Separator disappearing in iOS7

Question

I have some strange issue with UITableView only in iOS 7.

UITableViewCellSeparator disappears above the first row and below the last row. S

Answer 1

What made the difference for me was reloading the row for which the bottom separator line would not appear:

NSIndexPath *indexPath = 
     [NSIndexPath indexPathForRow:rowIndex inSection:sectionIndex];  
[self.tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];