Have you raised a Feedback report? If not, please do so at https://www.apple.com/feedback/ then post the FB number here.

What does your JSON look like? Have you tried pasting a sample of it into https://app.quicktype.io to see what it generates? When I convert any JSON into objects I always mark it as Codable. It's possible that B.y = "a value" might be in your JSON, but B itself is not Codable and so cannot be used to code the JSON in the first place.

No idea. Have you tried this yourselves on a device with iOS 18 beta? It's likely that something in the new OS is causing your web app to fail and reload, and you should debug this yourself.

These are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. These forums are not where Apple's actual developers chat about new features. If you have a suggestion, you should raise it at: https://www.apple.com/feedback/

WhatsApp is a third-party app; it's not an Apple app. It's likely that WhatsApp needs to be updated to work with iOS 18. Since iOS 18 is currently in beta, WhatsApp cannot release an update that would make it work with iOS 18. You will have to wait for iOS 18 to be released and then wait for WhatsApp to release their update for it to work properly. Besides, if there is an issue with a third-party app, you should really tell the developer of that app so they know, and can fix it.

Your JSON doesn't require two different classes, and doesn't match what you're trying to do in your code. What Swift is likely doing is seeing your Codable A class with the x variable, and populating that. The y var is nil because there is no y var in the only Codable class in your code. If your JSON was: { "A": { "x": "foo" }, "B": { "y": "bar" } } You'd use something like: struct RootClass: Codable { let a: A let b: B enum CodingKeys: String, CodingKey { case a = "A" case b = "B" } } struct A: Codable { let x: String } struct B: Codable { let y: String } Both are Codable, and will correctly parse that updated JSON. Since your JSON is { "x": "foo", "y": "bar" } you should just be using: struct RootClass: Codable { let x, y: String }

Have you removed items one at a time to see if the crash happens? In other words, remove the Image and see if it crashes. If not, it's the Image causing the issue. If not, remove the Text, etc. If it still crashes, then remove all attributes and add them back one at a time until it crashes. As an aside, your code can be cleaned up a little: I doubt you need the clear backgrounds. foregroundColor() is deprecated. You should use foregroundStyle() instead. .onAppear {} doesn't seem to have anything in it, so remove it. (You may have removed the contents for this post.) VStack(){ doesn't need empty parentheses, so can be VStack {. Does defaultImage exist as a UIImage? Are your frame sizes valid? That might trigger metrics issues.

Have you tried asking Google?

Have you raised a Feedback report? If not, please do so at https://www.apple.com/feedback/ then post the FB number here.

Do you need two WindowGroups? Can you put the if statement inside one WG, and apply it to the Views instead? @AppStorage("showFirstView") private var showFirstView = true var body: some Scene { WindowGroup(id: "wg") { if showFirstView { ViewOne() } else { ViewTwo() } } } I have no idea if this will work.

Have you raised a Feedback report? If not, please do so at https://www.apple.com/feedback/ then post the FB number here.

If you have 18.1 beta installed then you cannot install 18.0 beta 5 because 18.1 beta is newer than 18.0 beta 5. If you want to downgrade to 18.0 beta 5 you will have to wipe and restore from a backup (which is at 17.x or 18.0 beta 1-4), then install 18.0 beta 5.

Try this: WindowGroup(id: showFirstView ? "wg1" : "wg2") { if(showFirstView) { ViewOne() } else { ViewTwo() } }

These are the Developer Forums, where developers of third-party apps for Apple's platforms ask each other for hints and tips on coding. These forums are not where Apple's actual developers chat about new features. If you have a suggestion, you should raise it at: https://www.apple.com/feedback/

Please reformat your code. The top part isn't inside the code block, so it's difficult to read.