为什么Xcode控制台会打印约束不明确的警告，但UI调试器却没有？

Question

我有一个自定义的UITableViewCell，看起来像这样，没什么复杂的：

约束为：

1. 水平间距为16

2. 实际上，所有间距都是16：male.top = 16，male.bottom = 16，female.centerY = male.centerY，other.centerY = female.centerY

3. 按钮的宽度相等：female.width = male.width，other.width = female.width

4. 按钮的高度等于35，male.height = 35，female.height = male.height，other.height = female.height

此代码为：

for button in [maleButton, femaleButton, otherButton] {
    button.translatesAutoresizingMaskIntoConstraints = false
    contentView.addSubview(button)
}

var constraints: [NSLayoutConstraint] = []

constraints += NSLayoutConstraint.constraints(
    withVisualFormat: "H:|-16-[male]-16-[female]-16-[other]-16-|",
    options: [],
    metrics: nil,
    views: ["male": maleButton, "female": femaleButton, "other": otherButton]
)

constraints += NSLayoutConstraint.constraints(
    withVisualFormat: "V:|-16-[male(35)]-16-|",
    options: [],
    metrics: nil,
    views: ["male": maleButton]
)

constraints.append(
    NSLayoutConstraint.init(
        item: femaleButton,
        attribute: .height,
        relatedBy: .equal,
        toItem: maleButton,
        attribute: .height,
        multiplier: 1,
        constant: 0
    )
)

constraints.append(
    NSLayoutConstraint.init(
        item: femaleButton,
        attribute: .width,
        relatedBy: .equal,
        toItem: maleButton,
        attribute: .width,
        multiplier: 1,
        constant: 0
    )
)

constraints.append(
    NSLayoutConstraint.init(
        item: femaleButton,
        attribute: .centerY,
        relatedBy: .equal,
        toItem: maleButton,
        attribute: .centerY,
        multiplier: 1,
        constant: 0
    )
)

constraints.append(
    NSLayoutConstraint.init(
        item: otherButton,
        attribute: .height,
        relatedBy: .equal,
        toItem: femaleButton,
        attribute: .height,
        multiplier: 1,
        constant: 0
    )
)

constraints.append(
    NSLayoutConstraint.init(
        item: otherButton,
        attribute: .width,
        relatedBy: .equal,
        toItem: femaleButton,
        attribute: .width,
        multiplier: 1,
        constant: 0
    )
)

constraints.append(
    NSLayoutConstraint.init(
        item: otherButton,
        attribute: .centerY,
        relatedBy: .equal,
        toItem: femaleButton,
        attribute: .centerY,
        multiplier: 1,
        constant: 0
    )
)

NSLayoutConstraint.activate(constraints)

控制台中的警告消息是：

但是，当我尝试使用UI Debugger时，没有出现运行时约束不确定性警告，为什么？我应该担心控制台中的此警告消息吗？