No image when moving to any grid corner when image scaled to max (2.0 by default)

[Vermillion828]

No image (just black screen) when moving image to any grid corner (image corner as same position with grid corner) when it scaled to max (2.0 by default). Same effect when moving (both scaled and not) image, from one corner to opposite (for example from top/left corner to bottom/right corner). It happens when top left image corner past center of the crop view.