Set_prototype() does not changing factory's prototype

Questions
#1

I don’t understand why this happens at all, but the prototype doesn’t change and no error is thrown.

for i,el in pairs(self.furnitures[self.currentHouse]) do
    factory.unload("#furnitureSpawner")
    factory.set_prototype("#furnitureSpawner", el.game_obj)
    pprint(el.game_obj, i) -- /main/gameobjects/furniture/bedroom/someobj.goc , 'i' variable
    print(go.get("#furnitureSpawner","prototype")) --Always same

    local furniture = factory.create("#furnitureSpawner",el.position)
    table.insert(self.current_house_furniture, furniture)
end

I also noticed that the prototype is from the game_obj variable of the last element from self.furniture[self.currentHouse]

#2

I could be mistaken about what the question is, but this may have been discussed recently. I linked to this thread as guidance.

#3

Sorry, but this post didn’t give me anything

#4

Make sure your game object has been referenced somewhere so that the build system can create the .goc file of it.

#5

They are referred in other collection which is connected by collection proxy

#6

What if you as an experiment simplify it and skip the for-loop and only unload and change prototype once? Does that work?

#7

I changed prototype to path as string and it works. But as I said, it does not give me any error.