I found one workaround, it seems inputAccessoryView is buggy, instead it works by adding the toolbar directly to the same view: view.addSubview(toolbar) NSLayoutConstraint.activate([ toolbar.leadingAnchor.constraint(equalTo: view.leadingAnchor), toolbar.trailingAnchor.constraint(equalTo: view.trailingAnchor), toolbar.bottomAnchor.constraint(equalTo: view.keyboardLayoutGuide.topAnchor) ])