Dina shows Cheyenne a scar on her left shoulder that she got from a wound inflicted by a pet chimp she used to have, which required 11 stitches to close and which Dina cites as the reason she "switched to birds." Because Dina has been shown to be obsessed with birds throughout the entire series, the chimp wound must have been inflicted prior to the start of the series. Yet Dina has been seen sleeveless on multiple occasions, and would be seen sleeveless in subsequent episodes, and there was no scar there.
Glenn says that the suspected rewards cards would be hard to trace and then immediately says that they all came from Mateo. It would not be hard for them to trace because they would be able look up the employee who did it.
While attempting to get 100 views on one of her videos, Amy is shown repeatedly trying to get random customers/coworkers to watch her videos on her own phone. If views from her own account were allowed to be counted, she could just play the video 100 times to up the view count, with no need to have a random stranger look at it.