UIImagePicker cameraOverlayView出现在Retake屏幕上

I am struggling with a problem. I am capturing a video, and i had put an UIImageView with an UIImage in it as the UIImagePicker CameraOverLay. So when the user starts the camera in order to capture a video, he can see an overlay on the camera. When the user stops capturing, and is being moved to the "cancel or Retake" screen of the UIImagePicker, the cameraOverlayView is still visible. I am struggling with a problem. I am capturing