CGAffineTransform causes subviews to move abruptly

Question

I have a custom "card" view which has a corresponding XIB that lays out the subviews. I'm using constraints to layout the subviews.

I add the card view to another view and then attempt to animate it using CGAffineTransform rotationAngle.

When I trigger the animation, the subviews of the card view shift suddenly depending on the rotationAngle. Meanwhile, the rest of the animation works as expected; it rotates at the angle I specified.

My questions are: why are the subviews changing position when the transform begins and how do I prevent that from happening?

Here's a sample of the code I'm using. view.layoutIfNeeded() and view.autoresizesSubviews do not seem to make a difference, FYI.

        let rotation = arc4random_uniform(20)
        let destinationCenterY = self.frame.height + view.frame.height
        let destinationCenterX = arc4random_uniform(UInt32(self.frame.width))
        let startTransform = CGAffineTransform(rotationAngle: CGFloat(rotation))

        UIView.animate(withDuration: 0.4, animations: {
            view.transform = startTransform
            view.center.y = destinationCenterY
            view.center.x = CGFloat(destinationCenterX)
            view.layoutIfNeeded()
            view.autoresizesSubviews = true
        }, completion: { (complete) in
            view.removeFromSuperview()
            view.transform = endTransform
        })

I also have a strange issue with subviews resizing when using CGAffineTransform scale. Any help would be much appreciated.

EDIT: Adding images of what is happening. Before animation, views are aligned properly: After animation starts, the subviews move to the right:

Answer 1

To prevent my subviews from moving around on me when a transform started, I had to iterate through the subviews and set view.translatesAutoresizingMaskIntoConstraints = true, as follows:

for subview in view.subviews {
    subview.translatesAutoresizingMaskIntoConstraints = true
}

Thanks, @DevB2F for pointing me in the right direction!