Get It Done - S7-E15
Audio problem: When The First uses Chloe to mimic Buffy, Chloe's lips don't quite match her words.
Get It Done - S7-E15
Plot hole: When Dawn and Buffy discover Chloe hanging in the bathroom, Dawn gives a little gasp but nothing more. But, seconds later, some Potentials run from across the hall saying "What is it? We heard -" before they see Chloe. While it suits the next scene to have them there, there wouldn't have been any sounds loud enough for them to have heard from across the hall through a closed door.
Get It Done - S7-E15
Continuity mistake: In the episode 'Get It Done' when Dawn and Buffy find Chloe's corpse the door across the hall from them is open. When it cuts back to them after the ad break it is shut, but there has been no time lapse.
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.