This update ends when you've brought both Violet and Cecilia into your home.
Usually when a quest is like that it means something else must be done.
What does the actual description of the quest say?
That i should talk to Alice in the morning about Jasmine who ran away
So when you try talking to Alice in the morning on a week day, it doesn't allow you? Because after you buy the medicine/visit Jasmine's room, it should allow you.
Did you make any weird story choices, like killing off a girl?