CameraMediaStorageOptions ignored

Hi, I am using the following code:

await this.mediaPicker.TakePhotoAsync(new CameraMediaStorageOptions { DefaultCamera = CameraDevice.Front, MaxPixelDimension = 600}).ContinueWith(t =>...

But the CameraMediaStorageOptions are ignored, only on Windows Phone the image is saved to a max size of 600x600, DefaultCamera is ignored and iPhone and Android ignore both options. Is there some I could be missing?