another thing i noticed is that you can put more than one fuel in the generator and this other thing isnt bug but itd be nice to be able to continue playing after doing the puppet questline
That's probably the case, the item is just stuck beneath the stage, we will check on that. And yes you can refuel the generator at any time but the extra fuel is wasted. Interesting suggestion. In fact, we discussed the idea of adding an endless-night mode after the campaign is completed.