I added a new row and column plus an area object to the column. I moved the row lower on the component tree and it keeps snapping back to the top of the tree. I did a drag and drop of the row lower in the design and still it snaps to the top of the page.
Acknowledged as a bug. As a work-around: in the project manager you can drag/drop the components from one row into another. So move the col from row 2 into row 1, and the col from row 1 into row 2.
Progress can be followed in the bugtracker