Do you have version 0.23.1 or version 0.23.2?
In 0.23.1 there's a bug, Emily's 3rd dream can only be triggered if you choose the middle dream level (under Dreams -> Choose dream level). Afterwards you can go back to the highest dream level to see the last 2 dreams.
In 0.23.2 it *should* be fixed, though, unless the bugfix somehow doesn't work as intended.