At 1:10, jumper's body is positioned on the roof of the taxi where her abdomen is aligned with the intact taxi sign. During Danny and Maria's investigation, her body is now further toward the back of the taxi, and her abdomen (and head) is no longer aligned to the taxi sign, which is now smashed.
At 11:01, a man and woman walk down the stairs behind Erin. As the camera angle switches to Danny, then, back to Erin, the same couple is now walking down the stairs again.
Frank's uniform collar has only 4 stars when it's supposed to have 5.