When you modify your design, automatically created zones do not automatically adjust themselves to the changes, so they may require you to use the Update Zones command.
To adjust Zones to your updated design and recalculate the Zone area:
Go to Design > Update Zones. This dialog lists the Zones in your project. Selecting a Zone in the list selects it in the project, and vice versa.
•If any Zone is selected, click Update Selected Zones.
•If none is selected, click Update All Zones.
Possible Status Problems when Updating Zones
The Update Zones dialog box also alerts you to any problematic Zones that might have been created.
•The Zone was created manually and cannot be automatically updated.
•The layer on which the Zone resides is locked. Unlock the layer in the Layer Settings dialog box and repeat the update process.
•The Zone is self-intersecting. Just as in the case of polygons, you may have to adjust the Zone to have valid geometry, or split it into two Zones. You can examine the Zone by selecting it in the list, and clicking the Zoom to Selected Zones button. Fix the problem and repeat the update process.
•The reference point of the Zone is outside of its boundary. Each automatic Zone has a reference point that must lie inside the Zone. If you get this error message, move the reference point inside the Zone and repeat the update process.
For more information, see Zone Reference Point.