Issue is reproduceable in 'Working with UI Controls' tutorial's project https://developer.apple.com/tutorials/swiftui/working-with-ui-controls
PresentationLink in Home.swift file shows Profile view, but only once - after you close the view, any subsequent touches do nothing.
Also, app crashes with access violation error if NavigationLink is replaced with PresentationLink within NavigationView's List.
Same here with Xcode 11 beta 3.
Amazingly this bug has been present in each iteration of the beta, despite the fact the API itself has been changed more than once already... It's bumming because this bug is trully breaking.