Why doesn't the camera lock onto the part in this script?

This should look out from a part called CamPart at a Part called FocusPart, instead it just looks at the CamPart from far away.

This is a LocalScript in StarterPack

game.Workspace.CurrentCamera.CameraType = "Scriptable"
game.Workspace.CurrentCamera.CameraSubject = game.Workspace.CamPart
game.Workspace.CurrentCamera.Focus=CFrame.new(-13, -54.5, 40)

From the wiki page for CameraSubject: A Model, Part, or Humanoid for the camera to look at. Setting this property will override the Focus property. Furthermore, neither CameraSubject nor Focus will work at all when the CameraType is set to Scriptable.

To make this work properly, set the CameraType to Scriptable, then set its CoordinateFrame to a CFrame starting at CamPart, looking at FocusPart.

wait(1)
local Camera = game.Workspace.CurrentCamera
local CamPart = game.Workspace:WaitForChild("CamPart")
local FocusPart = game.Workspace:WaitForChild("FocusPart")

Camera.CameraType = "Scriptable"
Camera.CoordinateFrame = CFrame.new(CamPart.Position, FocusPart.Position) -- constructs a CFrame starting at CamPart, looking at FocusPart