Custom Story Won't Save Progress

[Superspiny]

I am sorry for reviving this but i have a serious problem.
I bought amnesia on steam not too long ago and after completing it I downloaded a custom story (The Great Work). I put it in the custom stories folder and played it. The problem is that when i click "save and exit" it never saves. Whenever i try to load it i go into custom stories, select the great work and all there is is "start" and "cancel". Can anyone tell me why there is no "continue" option?