Sometimes during section creation, we can see only the elements inside the clipping zone (which is correct), but sometimes we can also see the elements outside of this clipping zone. What it depends on?
When creating a section, its direction is very important.
If you are creating a section from left to right, note the small arrow under the circle at the start and end points of the section. This arrow indicates the direction of section creation. Hence, to see only the elements inside the clipping zone, you need to select the elements under this section.
If you are creating a section from right to left, note the small arrow above the circle at the start and end points of the section. This arrow indicates the direction of section creation. Hence, to see only the elements inside the clipping zone, you need to select the elements above this section.