VScroll on Grid wrong

The position of the vertical scrollbar of the grid is not correct.

There are no more rows in the grid, but the scrollbar can still be moved further down, without the grid actually scrolling, and when the mouse is released, the scrollbar jumps back to the position in the picture.

Please send us a sample/code snippet that reproduce the issue, did you use BeginUpdate & EndUpdate?

I sent a sample project.

Thank you, we'll follow up via email.