Do you have a SinglePageViewController in a UIPageViewController and programmatically adjust positions of subviews defined in your Storyboard? Then you'll probably see jumping subviews on your pages whenever you start to swipe from one page to another. Why? Because UIPageViewController will layout the subviews of the SinglePageViewControllers whenever a swipe starts.
You have 2 options:
1) Turn off "Use Auto Layout" in your StoryBoard's file inspector panel.
2) Adjust the subviews' positions programmatically in viewDidLayoutSubviews.
// Adjust the subviews' positions
There you go. No more jumping subviews. :)