iOS CIFilter disabling purple channel and mixing utilizing CIScreenBlendMode offers completely different outcome than Photoshop

Utilizing iOS CIFilter, I’m making an attempt to recreate the glitch impact from Photoshop proven on this video:

https://www.youtube.com/watch?v=1Ibreg9T168

This is the unique picture:

Initially of the video, the individual firstly desaturates the picture to make it grayscale. Then creates a replica of that layer. Then disables the Pink channel on that layer. Then shifts it barely to the left to get this have a look at 55 second mark:

This ought to be doable simply with CIFilter. I did the under:

if let picture = UIImage(named: "demo13"), let editted = applyGlitchEffect(to: picture) {
    imageView.picture = editted
}

func applyGlitchEffect(to picture: UIImage) -> UIImage? {
    guard let ciImage = CIImage(picture: picture) else { return nil }
    let context = CIContext(choices: nil)
    
    
    let grayscaleFilter = CIFilter(identify: "CIColorControls", parameters: [
        kCIInputImageKey: ciImage,
        kCIInputSaturationKey: 0.0
    ])
    
    let noRedChannel = CIFilter(identify: "CIColorMatrix", parameters: [
        kCIInputImageKey: grayscaleFilter?.outputImage as Any,
        "inputRVector": CIVector(x: 0, y: 0, z: 0, w: 0)
    ])
    
    let shifted = noRedChannel?.outputImage?.reworked(by: CGAffineTransform(translationX: -20, y: 0))
    
    let blended = CIFilter(identify: "CIScreenBlendMode")
    blended?.setValue(shifted, forKey: kCIInputImageKey)
    blended?.setValue(grayscaleFilter?.outputImage as Any, forKey: kCIInputBackgroundImageKey)
    
    
    if let finalOutput = blended?.outputImage, let cgImage = context.createCGImage(finalOutput, from: ciImage.extent) {
        return UIImage(cgImage: cgImage)
    }
    
    return nil
}

This provides me the under outcome:

As you possibly can see, my result’s just like the one within the video at 55 second mark. Nevertheless, my picture has a bluish tint to it for some cause. Whereas the one within the video is grayscale with shifted reds and blacks on the edges.

I believe I is likely to be utilizing the incorrect mix mode or one thing. I did attempt a number of different mix modes however did not get related outcome.

I appeared up what mix mode Photoshop makes use of and in keeping with this:

https://helpx.adobe.com/photoshop/utilizing/blending-modes.html

the default is “Regular: Edits or paints every pixel to make it the outcome colour. That is the default mode.”

How can I recreate it? What am I doing incorrect?