As far as i’m aware i dont think the matinee camera will persist.
However, you could always position a camera in the correct location and switch to it when the matinee ended?
Once i realised i could get a MatineeActor that only triggered when finished i just used the “Set View Target with Blend” function to set the camera to another camera in the same position as the end frame. Not the cleanest way but it works. Hoping to put some kind of Hud here in the future.