Warden Glynn goes from having a full beard, to a goatee, back to a full beard before finally going back to a goatee.
When the fight breaks out in the gym Ryan and his brother Cyril are present. Yet when it shows Emerald City going into lockdown, less than a minute later, Cyril is shown sitting in one of the chairs in the common area twirling a notebook on his finger. There was not nearly enough time for him to get from the gym back to Emerald City.