I have 4 fighters in a factory that went to 100% completion and then stopped. When I went to the factory to try and complete them their status is shown as being a Fatal Error. Is that something production related, or is it a bug that needs to be bugbased? I don't remember ever hearing of fatal errors in production only errors which cause the entity to have to be restarted.
Did the operator change during production? Or leave the faction? You might want to double check the rules page for conditions that will cause production to hit 100% but not complete, and make sure none of them apply.
"May the Grace of Ara go with you, and His Vengeance be wrought upon your enemies."