The Ministry of Virtue - S14-E6
Continuity mistake: Around the middle of the episode, Hart and Carmichael walk down a street with ice cream cones in their hands. When they stop for a brief face to face discussion, the ice cream in the man's hand keep changing from full portion to half-eaten and vice versa as the camera perspective switches back and forth.
Answer: The corridor crew on youtube talked about this: https://www.youtube.com/watch?v=jkvXGI6bk2Q&t=1017s Timestamp is 15:35 to skip to the scene you want.
lionhead