in attached you can find two screens about GCP, till first step (zenithal shots) everythings works well, other screen is about step two when i added component abot 3000 photos.
In this case i use GCP measured by gnns using ground targets. I am confident to precisions of this step.
Base component was computed using georeferenced data of photos with GCP in one file.
Slave component was computed in other file but i left epsg 32633 wgs 84 but without GCP, i thought that i can redefine the precisione of this component in the master file (with master component).
honestly what i don’t understand is why the alignment process seems has impact on GCP position…i thought that GCP should work as constraints of the job…