1) Acquire large ship blueprint with a number of turrets, Docked Injectors, Rail-Doors and Hangers, etc
2) Attempt to spawn ship in via blueprint under "Normal Play Conditions", IE, at a homebase/station with docked ships or floating entities (Use Creative mode + Cargo block right click fill SHOULD suffice)
3) Notice that rarely some entities will not be present on the ship, despite the Blueprint working prior to this and having all entities present