need bioshock help.

[revolutionomega]

Yeah, I don't know why, but I'm near the end of the game and my Little Sister will no longer show me where to go after finishing her second harvest. I can't find any possible commands to make her move and there in no splicer threat anywhere... am I screwed to be stuck here with no means of progression?

Even when I move away or move slowly in any direction she just sits there telling me to hurry up and whatnot x.x I've even tried running away but she just sits there and the goal arrow tells me to run back to her and then nothing happens...