Episode #1.7 - S1-E7
Continuity mistake: When Kang-bae leaves the staff room to go practice, the sandwich that Guibanjang is holding has one bite taken out of it. Then it cuts to a shot of Guibanjang saying "Win first place", where there are now two bites taken out of the sandwich. Then part of the sandwich reappears again in the following shot. (00:38:44)
The Two Faces, Part Two - S1-E7
Continuity mistake: The first time Peter is inside the memory with his mother, two ornamental flags can be seen hanging on a wall next to a light switch as they talk in the living room. One of these flags suddenly turns roughly 45° to the left without anyone touching it. (00:07:33)
Continuity mistake: When Jonah confronts Meyer after the death of the surgeon, Meyer's holding a drink in his left hand as he turns to face Jonah. The shot changes angle and the drink is suddenly in his right. (00:48:40)
Visible crew/equipment: S6xE18 "Trust": Near the end, when Hana takes George's hand and says, "Let's go see the seagulls, bud," a pink T-mark is visible on the ground as they walk toward Remy and Annie. (00:37:10)