There is an option shown in the pic below that automatically hides "internal" components for performance reasons. This can be good at times but then cause headaches if you are unaware of this option for reasons you mentioned above when cutting sections. However, in the section view, you can right-click, select view properties, and there is a tab to clear "hidden components".
Hidden Components.PNG 53.2 KB
we already had that option deactivated, so that also did not cause the problem we had with the section views.
Thanks though for bringing it to my attention; that option might be of use someday.