Cannot pass Vision RecognizeTextRequest progress handler value to main thread

Hi! I'm trying to update the value of the progress bar I have created, so I call a completion block of a fuction I have created, the problem is that the completion block is called once the life cicle of the function has expired and I don't get a progress as I should.

I send you my code.

Please if anyone has any suggestions I'll appreciate your time.

This is my progress bar

struct ProgressBar: View {
   
    @Binding var value: Float
   
    var body: some View {
        GeometryReader { geometry in
            ZStack(alignment: .leading) {
                Rectangle().frame(width: geometry.size.width , height: geometry.size.height)
                    .opacity(0.3)
                    .foregroundColor(Color(UIColor.systemTeal))
               
                Rectangle().frame(width: min(CGFloat(self.value)*geometry.size.width, geometry.size.width), height: geometry.size.height)
                .foregroundColor(Color(UIColor.systemBlue))
                    .animation(.linear)
               
            }.cornerRadius(45)
        }
    }
}

This is my read image function

private func readImage(image:UIImage, completionHandler:@escaping(([VNRecognizedText]?,Error?)->Void), comp:@escaping((Double?,Error?)->())) {
    
    var recognizedTexts = [VNRecognizedText]()
    let requestHandler = VNImageRequestHandler(cgImage: (image.cgImage)!, options: [:])
    let textRequest = VNRecognizeTextRequest { (request, error) in
    guard let observations = request.results as? [VNRecognizedTextObservation] else { completionHandler(nil,error)
        return
        }
        for currentObservation in observations {
            let topCandidate = currentObservation.topCandidates(1)
            if let recognizedText = topCandidate.first {
                recognizedTexts.append(recognizedText)
            }
        }
        completionHandler(recognizedTexts,nil)
    }
    
    textRequest.recognitionLevel = .accurate
    textRequest.recognitionLanguages = ["es"]
    textRequest.usesLanguageCorrection = true

    textRequest.progressHandler = {(request, value, error) in
        print(value)
        DispatchQueue.main.async {
            comp(value,nil)
        }
    }
    try? requestHandler.perform([textRequest])
}

This is my main view

struct ContentView: View {
    
    @State var ima = drawPDFfromURL(url: dalai)
    @State private var stepperCounter = 0
    @State private var observations = [VNRecognizedText]()
    @State private var progressValue: Float = 0.0
    private var originaImage = drawPDFfromURL(url: dalai)
    
    var body: some View {
        
            VStack{
                VStack { Button(action: {
                    //self.observations = readText(image: self.ima!)
                    DispatchQueue.main.async {
                        readImage(image: self.ima!, completionHandler: { (texts, error) in
                            self.observations = texts!
                        }) { (value, err) in
                            self.progressValue = Float(value!)
                        }
                    }
                    })
                    {
                        Text("Read invoice")
                    }
                    ProgressBar(value: $progressValue).frame(height: 20)
                }.padding()
                Stepper("Select Next Box", onIncrement: {
                    self.stepperCounter += 1
                    self.ima = addBoundingBoxToImage(recognizedText: self.observations[self.stepperCounter], image: self.originaImage!)
                    print("Adding to age")
                }, onDecrement: {
                    self.stepperCounter -= 1
                    print("Subtracting from age")
                })
                HStack(alignment: .center) {
                    Text("For word: ")
                    Button(action: {getBoxProperties()}) {
                        Text("Get box properties")
                    }
                    
                }.padding()
                Image(uiImage: ima!)
                    .resizable()
                    .scaledToFit()
            }
        
    }
}

I can get the progress printed, but I cannot pass the value.

Please if anyone has any suggestion I'm all ears.

Thanks

Carlos