For years I’ve noticed that my sim could write half a book and stop, but when I have them resume the same book it starts from the start. They can only write a book in one sitting with no breaks.
E...
Ideas
That only happens to me if the Sim has gone through a loading screen. Resuming a book works okay as long as I haven't traveled to another lot, gone into CAS, gone into Manage Worlds, exited and then reloaded the save, etc.