In iOS using WIPER Architecture and I am trying to provide an Appearance to TextFormField named updateMemoField.

Already there was to TextFormFields as below:

@IBOutlet weak var brandValue: BorderedTextField?
@IBOutlet weak var allocationValue: BorderedTextField?

then calling setViewAppearance(appearance: display)

override func awakeFromNib() {
    super.awakeFromNib()
    do {
        appearanceProvider = try DependencyContainer.shared.resolve() as BMLineItemAppearanceProvider
    } catch {
        log.error("Could not load BMLineItemAppearanceProvider class")
    }
    appearance = appearanceProvider?.bmLineItemAppearance
    if let display = appearance {
        setViewAppearance(appearance: display)
    }
}

you can check method below:

private func setViewAppearance(appearance: BMLineItemAppearance) {
    setAllFields(appearance: appearance)
    ...
}

setAllFields method is as below:

private func setAllFields(appearance: BMLineItemAppearance) {
    let fields = [brandValue: localizedKey(key: "select"),
             allocationValue: localizedKey(key: "select")]
    for item in fields {
        item.key?.configureAppearance(appearance.textAppearance, fieldAppearanceType: .formText)
        item.key?.borderedEdges = BorderedEdge.all
        item.key?.placeholder = item.value
        item.key?.tintColor = .clear
        item.key?.delegate = self
        item.key?.dropdownButton(completionHandler: {
            self.onClickDropDownFields(field: item.key!)
        })
    }
}

This is working fine. But, Now I need to add one more TextFormField (BorderedTextField) in my UI so simply I declared variable as below:

@IBOutlet weak var updateMemoField: BorderedTextField?

and Tried to provide appearance to it as below by creating a method:

private func setUpdateMemoFieldsAppearance(appearance: BMLineItemAppearance) {
    guard let updateMemoField = updateMemoField else {
        print("updateMemoField is nil, skipping configuration.")
        return
    }
    
    updateMemoField.tintColor = .blue
    updateMemoField.configureAppearance(appearance.textAppearance, fieldAppearanceType: .formText)
    updateMemoField.returnKeyType = .default
    updateMemoField.autocorrectionType = .no
    updateMemoField.borderedEdges = BorderedEdge.all
    updateMemoField.delegate = self
}

Calling this method inside setAllFields as below:

private func setAllFields(appearance: BMLineItemAppearance) {
    let fields = [brandValue: localizedKey(key: "select"),
             allocationValue: localizedKey(key: "select")]
    for item in fields {
        item.key?.configureAppearance(appearance.textAppearance, fieldAppearanceType: .formText)
        item.key?.borderedEdges = BorderedEdge.all
        item.key?.placeholder = item.value
        item.key?.tintColor = .clear
        item.key?.delegate = self
        item.key?.dropdownButton(completionHandler: {
            self.onClickDropDownFields(field: item.key!)
        })
    }
    setUpdateMemoFieldsAppearance(appearance:appearance)
}

and runtime am getting error as :

Thread 1: EXC_BAD_INSTRUCTION (code=1, subcode=0x0)

What might be the issue?