As of iOS 16, I am seeing strange behaviour in SKEffectNode where the attached shader appears to be affecting an area that is outside the accumulated frame. This happens when the frame of the effect node's subview is changed. I've prepared the following playground example which allows for reproduction of what I believe to be a bug. It consists of an SKScene, with an SKEffectNode added to it and an SKLabel added to the effect node. The effect node has a simple SKShader attached which produces a gradient effect across the frame of the SKLabel. A tap down on the scene will iterate the text of the SKLabel though 3 strings of different lengths. The issue presents itself by the fourth tap, as the gradient will then appear outside of the SKLabel frame. The accumulated frame of the SKEffectView at this point will also not be the same area that is affected by the shader. import PlaygroundSupport import SpriteKit class GameScene: SKScene {   private var i = 0   private let strings = ["Test", "Testing", "Test Test Test"]   private let effectNode = SKEffectNode()   private let label = SKLabelNode()   override func didMove(to view: SKView) {     backgroundColor = .white     anchorPoint = CGPoint(x: 0.5, y: 0.5)     addChild(effectNode)     effectNode.position = .zero     effectNode.shouldEnableEffects = true     effectNode.shader = SKShader(source: """     void main() {       vec4 texel = texture2D(u_texture, v_tex_coord);       vec4 color = vec4(1.0-v_tex_coord.x, 0.0, 0.0, 1.0);       gl_FragColor = mix(texel, color, 0.5);     }     """)     effectNode.addChild(label)     label.verticalAlignmentMode = .center     label.position = .zero     label.fontName = "Helvetica"     label.fontSize = 40     label.fontColor = .blue     label.text = strings.first   }   override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {     i += 1     if i >= strings.count {       i = 0     }     label.text = strings[i]   } } let sceneView = SKView(frame: CGRect(origin: .zero, size: CGSize(width: 500, height: 500))) let scene = GameScene(size: sceneView.frame.size) scene.scaleMode = .aspectFill sceneView.presentScene(scene) PlaygroundSupport.PlaygroundPage.current.liveView = sceneView This unexpected behaviour is not present on iOS 15, but is currently occurring on iOS 16.0, 16.0.2 and 16.1 beta 3.

I have a UICollectionView where sometimes (about 50% of the time) when the keyboard appears, it causes all of the collection view cells to disappear. This only happens on iOS 16, and the collection view itself maintains its size throughout the keyboard presentation and dismissal, but loses all of its cells. The didEndDisplaying UICollectionViewDelegate method is called for each of the cells that were being displayed. I've tried using both diffable data source and UICollectionViewDataSource implementations. I've tried using keyboard notifications to move the collection view up, and I've tried pinning the bottom of the collection view to the top of the keyboard layout guide. The issue persists no matter the implementation. Given that it works on iOS 15 just fine, and that the issue is non-deterministically happening about half the time on iOS 16, I'm inclined to think it's yet another iOS 16 bug. I've debugged thoroughly, reviewed my code over and over, tried different implementations, and made all kinds of arbitrary changes and removals to the surrounding code to try and identify a cause but I cannot. Is anyone else experiencing this? For what reasons would the cells disappear from a collection view? I know a change in data source or snapshot would do it but neither of those are occurring. I'm not sure what other things could cause all cells to disappear. I apologize that I cannot share code but it's a very simple collection view implementation and grid layout, and I'm quite confident that there is no obvious flaw in my code and that the issue is something obscure or out of my control.