When using a custom high dpi pixmap for cursor and setting it with QDrag::setDragCursor(), the shown cursor is twice as large as it should be. Setting the same pixmap with QWidget::setCursor() shows the cursor in correct size.

See the attached example for reference. The cursor of the application is set with QWidget::setCursor() and it has correct size. Now drag any of the texts from left to right and see the extra large cursor on top of right hand side drop area.