Facing Issue with CGAffineTransform in NIB - ios

Question

I have 2 Views (viewLeft, viewRight). I am rotating these views with angel 0 (initial setup) by calculating the same anchor point so that it looks like views are rotating across hinge.
I have done below code, which is working fine if I took the views in storyboard (viewcontroller) and it does not work if I copy and paste same views and code in nib. In Nib, at 0 angel views leaves some space between them. It is weird behavior, I checked all code outlets and constraints, everything is fine but unable to figure out why it is not working.
I want it to be working in NIB.
Any help will be appreciable.
Github dummy project reference here
Outputs :
From Storyboard
From XIB
Code work
Set Anchor point
extension UIView {
func setAnchorPoint(_ point: CGPoint) {
var newPoint = CGPoint(x: bounds.size.width * point.x, y: bounds.size.height * point.y)
var oldPoint = CGPoint(x: bounds.size.width * layer.anchorPoint.x, y: bounds.size.height * layer.anchorPoint.y);
newPoint = newPoint.applying(transform)
oldPoint = oldPoint.applying(transform)
var position = layer.position
position.x -= oldPoint.x
position.x += newPoint.x
position.y -= oldPoint.y
position.y += newPoint.y
layer.position = position
layer.anchorPoint = point
}
}
Rotation function
func rotateView(_ addAngel : CGFloat) {
let rotateToAngel = angel + addAngel
guard rotateToAngel <= 0.6 && rotateToAngel >= -0.6 else {
return
}
angel = rotateToAngel
let anchorPointLeft = CGPoint(x: (viewLeft.frame.width - viewLeft.frame.height/2)/viewLeft.frame.width,
y: ( viewLeft.frame.height/2)/viewLeft.frame.height)
viewLeft.setAnchorPoint(anchorPointLeft)
let anchorPointRight = CGPoint(x: (viewRight.frame.height/2/viewRight.frame.width),
y: ( viewRight.frame.height/2)/viewRight.frame.height)
viewRight.setAnchorPoint(anchorPointRight)
self.viewLeft.transform = CGAffineTransform.init(rotationAngle: rotateToAngel)
self.viewRight.transform = CGAffineTransform.init(rotationAngle: -rotateToAngel)
}