Continuity mistake: After the hitman barges into Diamond's apartment and slugs him, Diamond collapses into a chair and both ends of his loose tie fall to the right. In the very next shot, the two ends of the tie are evenly spaced on either side of his shirt buttons.
Continuity mistake: The taxi Diamond follows has no markings on the side when it first pulls away. During the drive, it suddenly has both markings on the side and an advertising sign on the back. But when it stops, the cab again has no markings, and the sign has disappeared.
Continuity mistake: The Mexican police pull a submerged car from the water with a crane. In the full shot (stock footage), the car emerging is upright (rooftop above, wheels underneath). But in the very next shot of Diamond and the cops next to the retrieved car, it's suddenly upside down with its wheels in the air.
Snow Queen - S2-E21
Continuity mistake: Diamond's loose tie tightens itself between shots when the doorbell rings and he crosses the room to open the door. When he picks up the phone, the tie is loose again, but when he opens the door to leave, it's tightened. (00:42:15 - 00:45:00)