Continuity mistake: In the previous episode, Empty Places, Kennedy had a cut across her nose and two more between her eyebrows in the last scene. In the first scene of this episode, which takes place a few minutes later, the cuts are completely gone.
Continuity mistake: This episode takes up exactly where the previous one (Empty Places) left off. Anya now has curly hair, but she had straight hair at the end of Empty Places.
Continuity mistake: Anya's hair changes from straight in the previous episode to curled in this one, even though it is set directly after.
Chosen answer: He had larangitis and because of the shooting specifications they had to have him shoot the scene with a bad throat, they then re-recorded his lines and dubbed them. At various points during the scene and indeed the episode you can see him touch his throat or rub it.