[1.9-1.10] Global Construction in Add-on Releases Posted April 4 Save your game, preferably from the Space Center. Then load the save you just created and go back to flying your craft. The game should recognize your Engineers now. My experience is that every time I move the Engineers around to or from the Workshop or the Assembly Line parts, the mod seems to lose track of them. I'm playing 1.11.2. So I've made it a habit to save and load before I try to use the Workshop or Assembly line.