AutoCAD Civil 3D :: Update Intersection Regions And Rebuild Corridor

I have 5 intersections in a drawing and i try to update all the intersections regions one after the other with "Update Regions and Rebuild Corridor". The problem is that sending up to date some intersections send other intersections (previously updated) out of date. So i cannot have all my intersections updated. The only way i found to correct this is to "Update regions automatically". but this way i cannot make changes to regions manually.