group size error when turning page
Create a group of objects, for example, a text block plus a rectangle, and also the same rectangle separately. Then create a new page and rotate it 90 degrees in the page management window. Copy your group and the individual rectangle from the old page and place it on the flipped one. Now enter new dimensions, for example 100 by 10 mm for the group and for the rectangle. The individual rectangle will get the correct dimensions, taking into account the fact that the page is rotated 90 degrees. However, the group will have an error - the vertical dimensions will become the horizontal dimensions and vice versa. You will clearly see how the individual rectangle deforms and how the group changes even though you entered the same values for them.