Episode #4.2 - S4-E2
Continuity mistake: During Dwayne's hypothetical rendition of the crime, Florence is writing with the notepad's cover held up, except in one shot ("And then goes out of the back window"), when she has it rolled against its back. (00:08:55)
Episode #4.2 - S4-E2
Continuity mistake: When Goodman climbs on top of the furniture leaving his colleagues puzzled, his pen is simultaneously in the hand that grips the crack in the wall net to the ceiling, and in the hand down his side together with his notes. (00:08:15)
Episode #4.2 - S4-E2
Continuity mistake: Officer Florence Cassell is bagging something behind Dwayne as he is talking about the case. When he says "It's what the evidence says, Chief", she goes all of a sudden from holding the ziplock bag to holding the notepad. (00:07:55)
Episode #4.2 - S4-E2
Continuity mistake: The future victim is preparing the client for some surfing. During the scene, the strap of the surf is in the sand in Jake's closeups (you can see it popping up in the left part of the screen) but it's at the back of the board in the wider angles. (00:00:25)
Episode #4.1 - S4-E1
Continuity mistake: The bottles of beer in the hand of both Humphrey and Camille are turned facing different directions in each shot in their final scene together. (00:49:40)
Episode #4.1 - S4-E1
Continuity mistake: When Humphrey sets the popcorn for Harry, Harry in the last shot is closer than in the previous - which could make sense if we assume he scuttled closer during the split cut to Kris Marshall, but the light on the couch changes between shots as well. (00:51:15)
Episode #4.1 - S4-E1
Continuity mistake: Humph and Camille are talking with Zeta Akande about the reasons for the lack of references from her job. When she says "The children really loved me", her braids at the leftmost side of the chest are bunched together, split when she says in close-up "He didn't like that", united again as it gets back to a wider angle, etc. (00:32:35)
Episode #4.1 - S4-E1
Continuity mistake: When Camille pummels her boss with a pillow, she is holding it with the striped side facing the camera. In the close-up where she puts the pillow down, it's the black side. (00:23:50)
Episode #4.1 - S4-E1
Continuity mistake: When Humph realises he got wrong the timing of the jumpscare in "The Ghoul" with Boris Karloff, Camille when it cuts to a wider view is holding her popcorn at lower height. (00:23:40)
Episode #4.1 - S4-E1
Continuity mistake: When Dwayne speaks with the mysterious woman at Catherine's, her hair looks different in close-ups and wider angles. (00:19:50)
Episode #4.1 - S4-E1
Continuity mistake: Camille and Humphrey pass to each other and show Andre Morgan the key retrieved from the safe. They hold it positioning their fingers differently (tip of the key or closer to the rounded part) on the various shots. (00:18:50)
Episode #4.1 - S4-E1
Continuity mistake: Lucy Thomson sits at a table outside while her brother Daniel is dealing with distillery paperwork. She puts her cell phone next to her. When it rings a few shots later, the phone is at the corner of that table. (00:15:45)
Episode #1.2 - S1-E2
Continuity mistake: When Richard has concluded that one of the 6 people in the lift killed the bride, the shot changes to show Fidel and Dwayne loading the 4x4 up. Fidel is putting the lights in the back, camera changes and now he's receiving goods off Dwayne. (00:13:30)
Episode #1.2 - S1-E2
Continuity mistake: When William welcomes the police to the floor, his hand is outstretched. When camera changes his hand is no longer outstretched. (00:06:20)
Episode #3.8 - S3-E8
Continuity mistake: When the murderer is revealed, they cry admitting implicitly their guilt. Mascara runs down their cheek, but its trails disappear between shots, and changed are also the smears on the lower eyelid. (00:47:45)
Episode #3.8 - S3-E8
Continuity mistake: In a rather blatant continuity mistake, Humphrey starts seated with his wife and two cocktails, which become a single cocktail glass when Dwayne and Fidel barge in. (00:35:00)
Episode #3.8 - S3-E8
Other mistake: The timestamps on the CCTV screenshots indicate that the murder happened in early March (since they are from early February and they go back one month), but March already passed in previous episodes of the same season (gigolo calendar, bank statements). (00:29:00)
Episode #3.8 - S3-E8
Continuity mistake: Fidel is reporting the background checks on everyone. When Camille asks him "What about the manager?" suddenly DI Humphrey Goodman has in hand the marker he was not holding a moment before. (00:18:20)
Episode #3.8 - S3-E8
Continuity mistake: When the severely confused Humphrey asks "What are we doing?" Sgt. Bordey points at the car; in the first shot she points and lowers her hand, but in the next shot the hand is still up and pointing. (00:12:30)
Episode #3.8 - S3-E8
Continuity mistake: Talking about the Chambers in front of the station prior of the surprise arrival of his wife, Humph gesticulates with his left, right, left hand depending on the camera angle. (00:10:50)
Answer: There's probably no particular reason. Sets and props on long-running TV shows often change as needed and for various reasons throughout a series run.
raywest ★