So I've taken my interactions with each of the main girls as high as it lets me before they start bugging out or becoming non-interactable(not sure if this is supposed to happen or if progress past a certain point becomes locked until a certain amount of story progression?), beat the succubus, saved, moved to attack the fortress, for some reason could only pick one of the other guy's girls to come with, did so, but then loaded my save to double check something, but now when I go up to the fortress the MC only says Not Now on the attack option. Will reload my save before the succubus fight and see if it lets me then.