Any subclass of UIScrollView causes the animation to jump location...

[nishal]

Any subclass of UIScrollView causes the animation to jump to a location that seems to be co-related to the contentOffset of the currently shown view.

I found a very quick fix to this:

UIView *superView = current.view.superview;
CATransformLayer *transformLayer = [[CATransformLayer alloc] init];
// The line causing the issue - transformLayer.frame = current.view.layer.bounds;
// Change this to the following:
transformLayer.frame = current.view.layer.frame;

[current.view removeFromSuperview];
[transformLayer addSublayer:current.view.layer];