Attached is a pic of the turrets where one just sits in the default position while the other rotates around like a regular turret. I also noticed this happening with the door, and one will open, but there will still be a closed door. I have to manually open the second door to walk through. It might be all blocks like walls and stuff. This is happening in a scenario with lots of custom config files, and not happening in a vanilla game. I intend to isolate what's causing it but thought I'd ask in case anyone already knew of this and could save me some time. Otherwise I'll post back here when I figure it out. Further testing: - It's only this specific blueprint. Other custom builds in the same generated game are fine. - It doesn't matter whether it's an NPC admin or regular NPC core. - Generating this exact blueprint in a vanilla game is not broken. - Spawning in a survival game with sbp is not broken. So it has to be this blueprint AND my config AND generated for this to happen. Update: got it fixed. Ents showed 2 drone bases, same XYZ coords. It was some code in the playfield_static.yaml that was trying to produce two drone bases.