Upper left part of UIImage being cropped instead of center

Trying to crop what is visible inside the cropView frame, always getting correct size but upper left corner of image as a result.

@objc func cropConfirmButtonTapped(){
    
    
    guard let imageToCrop = editImageView.image else {
        return
    }
    
    let cropRect = CGRect(x: cropView.frame.origin.x,
                          y: cropView.frame.origin.y,
                          width: cropView.frame.width,
                          height: cropView.frame.height)
    
    let croppedImage = cropImage(imageToCrop,
                                 toRect: cropRect,
                                 imageViewWidth: editImageView.frame.width,
                                 imageViewHeight: editImageView.frame.height)
    
    editImageView.image = croppedImage
    editImageScrollView.zoomScale = 1
    
    
}

As per https://developer.apple.com/documentation/coregraphics/cgimage/1454683-cropping

func cropImage(_ inputImage: UIImage, toRect cropRect: CGRect, imageViewWidth: CGFloat, imageViewHeight: CGFloat) -> UIImage?
{
    let imageViewScale = max(inputImage.size.width / imageViewWidth,
                             inputImage.size.height / imageViewHeight)
    
    // Scale cropRect to handle images larger than shown-on-screen size
    let cropZone = CGRect(x: cropRect.origin.x * imageViewScale,
                          y: cropRect.origin.y * imageViewScale,
                          width: cropRect.size.width * imageViewScale,
                          height: cropRect.size.height * imageViewScale)
    
    // Perform cropping in Core Graphics
    guard let cutImageRef: CGImage = inputImage.cgImage?.cropping(to: cropZone)
        else {
            return nil
    }
    
    // Return image to UIImage
    let croppedImage: UIImage = UIImage(cgImage: cutImageRef)
    return croppedImage
}

Setup of views:

    editImageScrollView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor).isActive = true
    editImageScrollView.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
    editImageScrollView.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
    editImageScrollView.bottomAnchor.constraint(equalTo: colourOptionsView.topAnchor).isActive = true
    
    editImageView.widthAnchor.constraint(equalTo: editImageScrollView.widthAnchor).isActive = true
    editImageView.heightAnchor.constraint(equalTo: editImageScrollView.heightAnchor).isActive = true
    editImageView.centerXAnchor.constraint(equalTo: editImageScrollView.centerXAnchor).isActive = true
    editImageView.centerYAnchor.constraint(equalTo: editImageScrollView.centerYAnchor).isActive = true
    
    cropView.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
    cropView.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
    cropView.widthAnchor.constraint(equalTo: view.widthAnchor, constant: -12).isActive = true
    cropView.heightAnchor.constraint(equalTo:view.widthAnchor, constant: -12).isActive = true

Tried it with different ratios: