Swift 自定义回调在第一个实例上不起作用，但在第二个实例上起作用

问：

我有以下自定义UIStackViewComponent

class TitleWithSwitchView: UIStackView {
    let title: String
    var onSwitchTapped: ((Bool) -> Void)?
    override init(frame: CGRect) {
        self.title = ""
        super.init(frame: frame)
    }
    
    required init(coder: NSCoder) {
        self.title = ""
        super.init(coder: coder)
    }
    
    init(title: String) {
        self.title = title
        super.init(frame: .zero)
        setupUI()
        setupConstraints()
    }
    
    private var label: UILabel {
        let label = UILabel()
        label.translatesAutoresizingMaskIntoConstraints = false
        label.textColor = .white
        label.numberOfLines = 0
        label.lineBreakMode = .byWordWrapping
        label.text = "-"
        return label
    }
    
    private lazy var labelTitle = {
        let label = label
        label.text = title
        return label
    }()
    
    private lazy var switchButton = {
        let switchButton = UISwitch()
        switchButton.translatesAutoresizingMaskIntoConstraints = false
        switchButton.addTarget(self, action: #selector(switchTapped), for: .valueChanged)
        return switchButton
    }()
    
    @objc private func switchTapped() {
        onSwitchTapped?(switchButton.isOn)
    }
}

我有 2 个相同组件的实例，开关仅在第二个实例上工作。在一审中，什么也没发生

更新：

这就是我使用这个组件的方式。第二个工作得很好，但第一个不起作用

    private lazy var stackViewHobbyContainer = {
            let stack = TitleWithSwitchView(title: "Some Text")
            stack.onSwitchTapped = { [weak self] isOn in
                self?.onHobbyContainerSwitchChange(isOn: isOn)
            }
            return stack
        }()

private lazy var stackViewChallengeSwitchView = {
        let stack = TitleWithSwitchView(title: "Another Text?")
        stack.onSwitchTapped = { [weak self] isOn in
            print("Switch tapped \(isOn)")
        }
        return stack
    }()