Sister Frances and other postulants are seen taking their first vows in wedding dresses for the ceremony known as taking the veil. However, in Episode #5.8 (2016), Sister Mary Cynthia says she was disappointed that she took her vows in her regular habit because the order had given up the practise of wearing wedding dresses.
When Cath Hindman is discharging herself from the hospital, just before her sister walks in, she shuts her suitcase, but in the next shot her suitcase is still open, and she doesn't shut it until approximately 30 seconds later.
When Mr. Lombardi is at the hospital visiting his baby, he calls her "bambino." "Bambino" is Italian for little boy; for a girl, he should have used "bambina" instead.