下次触摸之前无法接收系统手势状态通知

Question

我当前在SKSpriteNodes这两个按钮上使用触摸方法。我接收到手势状态失败，但是我不确定为什么，因为我没有使用手势，所以我将touchBegan和touchEnded用于触摸控件。

override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    for touch: AnyObject in touches {
        let pointTouched = touch.location(in: self)
        if leftArrow.contains(pointTouched) {
            moveWizard(moveBy: -60, forTheKey: "left")
            wizardRunAnimation(forTheKey: "wizardRun")
            wizardNode.xScale = -1
        }
        if rightArrow.contains(pointTouched) {
            moveWizard(moveBy: 60, forTheKey: "right")
            wizardRunAnimation(forTheKey: "wizardRun")
            wizardNode.xScale = 1
        }
        if attackButton.contains(pointTouched) {
            wizardAttackAnimation()
        }
    }
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    wizardNode.removeAction(forKey: "left")
    wizardNode.removeAction(forKey: "right")
    wizardNode.removeAction(forKey: "wizardRun")
}