Murder on the Honore Express - S8-E1
Continuity mistake: When Florence pulls up next to D.I. Jack Mooney, every time the camera is directly on her, she has a seatbelt on. Every time the camera pans to the mirror reflection of her, she doesn't. (00:32:00)
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.
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