It's not broken, this specific part is just confusing / unintuitive. Both paths lead to Anastasia's room, when they "Disappear" from the room => switch the camera's to Anastasia's room and the scene will proceed from there.
Got it, really enjoyed ur cctv games, btw i really like the song in the sunkissed main menu, can u tell me what's it called ? Can't seem to find it anywhere on the internet