Missing Section Line

Sometimes the section line goes missing in the views, even though the Section itself is still there in the Project browser.Just like the image below the section line is missing.



But the section still appears in the browser.

This is attributed to the properties of the Section, see the image. The parameter hide at scales coarser than.

If the vaule of the plan view is coarser than the set scale then the section line will not be visible.

In the following image the view's scale is set to the same scale of the section parameter( or can be finer).And note the section line is visible in the plan again.