Having some trouble with the cross fade SKTransition in iOS 9.
In iOS 8 the cross fade worked correctly by increasing the opacity of the incoming scene while the outgoing scene remained at full opacity.
In iOS 9 the cross fade transition reduces the opacity of the outgoing scene at the same time as it increases the opacity of the incoming scene. Since neither scene is at full opacity the result is a transition that appears to darken a bit during its duration. It causes the transition to flicker a little bit at higher speeds. Again this worked correctly in iOS 8 where the transition works smoothly.
I realize it will take months but it would be great to see this fixed.