CameraActor doesn't render in Matinee movie?

[Jacky]

You also need to create a Director Group in the Matinee.

https://docs.unrealengine.com/latest/INT/Engine/Matinee/UserGuide/index.html#workingwithgroupsandtracks

Once you create the director track, select the first frame of the animation, hit enter and it will let you pick the camera you’d like to view from.