I can read all six chapters up easily enough, and the authors panel will let me edit a chapter. However, whenever I click on Add Chapter, I get Either the story does not exist, or the author does not allow additions. Edit Story Details gets The story does not exist, or you do not have permission to edit it.
Confused, and a little panicked here.
EDIT: All resolved and working fine now. No idea what happened of course, but normal service has been resumed.