I have a vertical stackview in my storyboard with four nested horizontal stackviews contained within it. The vertical stackview is pinned to a UIView (light blue) which in turn is pinned inside the main storyboard view.
Inside each horizontal stackview I have inserted three UIButtons.
The alignment for all of the stackviews is set to fill, and the distribution is set to fill equally.
The issue I am having is that I receive 16 warnings when I build the app. Each nested horizontal stackview, and all of the buttons warn that their frame will be different at run time. But when I run the app all appears to be fine.
The screenshots show my preview screen behaving as I would expect it to, along with a shot of the app running on an iPhone 6+. Not sure what I am doing to cause these warnings.