Remove Ground Control Point after creating a 3SM

I ran a large project with 9200 photos and 15 ground control points. The mesh looks good except at one of the GCPs there is a hill that doesn't belong. I don't think I picked that point very well and it may have caused the anomaly.  I believe that I need to remove the GCP at that location and rerun the project. When I go to the Edit Control Points Editor it is in read only mode. It took 7 days to run this project. Is my only choice to rerun from scratch and wait another 7 days for the results?