When a section plane is enabled, by default it is shown as a transparent gray rectangle. You may want to make the plane transparent in order to see the section cut more clearly.
- Right-click anywhere on the section plane to open the context menu.
- Click Show Section Planes.
To restore the plane, right-click anywhere in the scene background, then click Show Section Planes located at the bottom of the Workspace context menu.
Note that when the command is enabled, the corresponding icon on the context menu is highlighted.