Continuity mistake: When the episode begins, Jessica is having a meeting with Sally Wilson, who hangs a bag over her shoulder. A shot later, her bag is down and she is hanging it again.

Continuity mistake: When Jessica is having dinner, his glass swaps between full or almost empty depending on the shot.
Continuity mistake: When Danny Kincaid is at the beach, he is wearing green shorts when he is taking his shirt and shoes off, but he has blue and black shorts on when he goes into the water. (00:19:00)
Continuity mistake: When Danny dives into the ocean he's wearing different shorts than he was on the beach.
Another Killing in Cork - S11-E20
Continuity mistake: In the opening exterior shot of the train, it has at least six brown and green carriages. However, in the next exterior shot, the train is made up of three brown and cream carriages.