Bright Eyes - S1-E7
Other mistake: SPOILER: Gambit's funeral is taking place in his hometown of New Orleans, as evidenced by the coffins being above ground (because New Orleans is at or below sea level). However, Gambit's coffin is oddly lowered into the ground.
Other mistake: Ruth Slater's teeth are perfect and glistening upon her release from prison, even though she was an impoverished teen who spent 15 years in prison.
The Town with No Internet - S1-E6
Other mistake: After Abbie and Jan turn to look at the Alpha after fighting the vampugs, Jan breaks apart the broom in her hand. There is then a shot of Jan reflected in the Alpha's eyes, but her reflections are not backwards like they should be. (00:20:56)