We create button by initing it with a configuration and embedding it within a (horizontal) UIStackView.
We setContentHuggingPriority to required because we want the button to only take up as much space as it actually needs.

        var configuration = UIButton.Configuration.filled()
        configuration.title = "Send to"
        configuration.baseBackgroundColor = .red

        let customButton = UIButton(configuration: configuration)
        customButton.setContentHuggingPriority(.required, for: .horizontal)

When running attached to the debugger it looks like this:
what it should look like

When we open the app manually (by tapping on the icon) so not connected to the debugger, it looks like this:
what is looks like

When I attach the debugger after I launched the app manually and inspect the view hierarchy I see that the intrinsic content size width is 59 instead of 83 (when attached to debugger).

It seems that the intrinsic content size is wrong, but why?
Is it a bug at Apple? What could be wrong?