UIButton click not responding in iOS 15

in some phones with iOS 15 update(15.0.1, 15.0.2, 15.1), button click is not responding at all.

In which versions of iOS did you get it working ?

When you post code, please use the code formatter tool.

var signUpButton : UIButton = {
    let signInButton = UIButton()
    signInButton.setTitle(LocalizationManager.shared.localString(for: LocalizableStrings.signUpButton), for: .normal)
    signInButton.setTitleColor(.white, for: .normal)
    signInButton.setTitleColor(Colors.initoDark.withAlphaComponent(0.2), for: .highlighted)
    signInButton.backgroundColor = Colors.initoGreen
    signInButton.titleLabel?.font = UIFont.montserratSemiBold(15)
    signInButton.layer.cornerRadius = 26
    signInButton.layer.borderWidth = 2
    signInButton.layer.borderColor = Colors.initoGreen.cgColor
    signInButton.addTarget(self, action: #selector(handleSignupButtonTapped), for: .touchUpInside)
    return signInButton   }()

Do you see button on screen ? I understand yes if you can tap it.

Could you show the selector func handleSignupButtonTapped ?

Please also show what LocalizableStrings and LocalizationManager are.

Is LocalizationManager the class in which signUpButton is declared ? If so that would mean that signUpButton calls itself (LocalizableStrings.signUpButton) during its init ?

So please, provide more context.