Mirrors should show the characters' "Un" faces (as stated in the Pilot by Mason). However, when Mason and Daisy dance in Rube's apartment, the mirror reflects their true faces.
As Daisy and Georgia approach the gym's juice bar, Georgia asks her if she went to the gym when she was alive. As Daisy answers, her arm is alternately holding/not holding her purse strap between shots.
Delores asks Georgia is she's in for the run to the juice bar. As Georgia shakes her head, Delores arms jump from to her side, to crossed at her front between shots.
at 12:04, when Rube and George are sitting at the counter in Der Wafflehaus, a light flashes on the window and you can very clearly see several crew members. And again at 13:29 when George walks away.
Georgia states that a crab is not an animal, but a crustacean. Crustaceans are animals - they are just not mammals.