Audio problem: Diana talks to one of her sons, who's hiding inside playing Street Fighter II. You hear the sound effects playing that belong to the characters either Ryu or Ken: "Tatsumaki" (Hurricane kick), and "Shoryuken" (Rising dragon fist). When the shot cuts behind the son, you see the characters of Blanka (green guy) and E. Honda (the sumo wrestler). Neither of those characters can do either of those attacks, and there wasn't time for him to switch which character he was playing as. (00:23:39)
Continuity mistake: When Prince Charles reads a letter during Camilla's birthday, the paper he holds with both hands is suddenly held with just one. (00:29:07)
Continuity mistake: S6E1 In Paris, when Dodi tells his girlfriend they'll soon be in Malibu, her fringe is neatly brushed. A shot later, her fringe is parted.
Continuity mistake: When Diana holds the "Paris next week?" card, her index finger is behind the card but on top of it when the shot changes.