When Alison wakes from her dream with a sense of deja vue, she's carrying the yogurt but when the camera shows the children at the table, the yogurt is on the table at the same time.
Alison supposed to had forgot her ID badge but in the next scene she is shown in a meeting visibly wearing her ID badge.
Since Beverly Waller's husband is Walter Waller, Waller is her married name, not her maiden name. Why would her sister Carol also be named Waller?