Wait! Looks like we don't have enough information to add this to bug database. Please follow this template bug format
GridPanel doesn't scroll back to top 1st row
GridPanel doesn't scroll back up to the top row when using a trackpad or mouse wheel scroll action. Can be repeated on a GridPanel with infinity scroll by scrolling down with the mouse wheel or trackpad scroll and then scrolling back up to the top. You cannot get back to row 1 without using the scrollbar on the side of the grid.
Facing the same issue .I guess issue is we cannot scroll upto the the first row when scrolling through wheel from bottom