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)
Other mistake: The victim is shot and ends up in the swimming pool with a gaping exit wound. However there is no blood in the pool.
Beyond the Shining Sea: Part One - S8-E5
Continuity mistake: The video played on the mobile where Tiana is shown leaving on the boat shows her wave with her right arm. In the previous scene she waved from the boat with her left arm. (00:03:26 - 00:07:52)
Murder on the Airwaves - S8-E7
Continuity mistake: When the DJ is handed the LP at the start the way it's held changes position between takes. (00:02:35)
Continuity mistake: When we see Harry on the laptop, he runs off and the laptop switches from on to off.
Answer: Most likely they had only tropical exotic drinks, he wanted an old fashioned English beer.