Revealing mistake: When everyone is supposed to be frozen, the neighbor girl standing behind the car can be seen moving her hand onto the car. This happens as Monica says "I'm not afraid of you, Wanda." (00:24:25)
Revealing mistake: When Caleb arrives, as he's talking to Billaba and Grey, his Padawan braid clips through his cloak as it sways back and forth. (00:02:05)
Dinner Party - S1-E4
Revealing mistake: Issac is reflected in the cabinet door when Sam is asking for the ghost's help.
Upvote valid corrections to help move entries into the corrections section.
Suggested correction: When was it established that the ghosts' reflections aren't seen?