Near the beginning of the episode, Paige is talking to the avatars. She is sitting at a table reading a book. She is clearly wearing a pink sweater while having her discussion (with camera going back and forth). When one of the avatars walks behind her, he says something about the planets in alignment for the change and she is looking at the book still wearing the sweater. Alpha avatar says we need to do it now and the camera goes back to Paige, now looking up at him, and suddenly she's not in the sweater, but back in her red spaghetti string top. Within the split second she couldn't have had time to remove that sweater, she was looking down at a book and just looked up! The sweater wasn't in the rest of the scene either, it was just gone.