Environment: Xcode 26.3 RC macOS 26.3 (25D125) (Apple Silicon / arm64) Setup: Xcode > Settings > Intelligence > Claude Agent: Signed In (account status shows "Signed In") Model: Default Steps to reproduce: Open a new chat in Xcode's Coding Assistant Select "Claude Agent" from the agent dropdown (instead of "Claude Sonnet 4.5") Send any message (e.g. "HI") Expected result: Claude Agent responds normally. Actual result: The message is sent but immediately returns the error: "Your request couldn't be completed." 🚩I have an active Claude Code subscription with remaining usage. Running claude in Terminal works perfectly, confirming the subscription and quota are valid.

This is a critical bug with Document-Based Apps (SwiftData). If you download the WWDC 2023 sample code for"Building a document-based app using SwiftData" , open it in Xcode 16.1, and run it on an iOS 18+ simulator, you'll encounter a major issue. When you exit a document and reopen it, you'll find that the changes you just made were not saved. iOS 18 has effectively rendered last year's WWDC 2023 sample code obsolete! Has anyone managed to successfully save data in a Document-Based App using SwiftData?

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import SwiftUI import TipKit @main struct TipKit_WithPresentPageApp: App { var body: some Scene { WindowGroup { ContentView() .task { try? Tips.resetDatastore() try? Tips.configure([ .datastoreLocation(.applicationDefault) ]) } } } } import SwiftUI struct ContentView: View { @State private var isPresented: Bool = false var body: some View { NavigationStack { VStack { Image(systemName: "globe") .imageScale(.large) .foregroundStyle(.tint) .popoverTip(MyTip()) .padding(100) Button("Hit Me!") { isPresented.toggle() // When the TipKit notification appears, the 'present sheet' button will be non-functional. (iPhone SE and simulator devices) } .padding() .sheet(isPresented: $isPresented) { PresentPage() } } } } } import SwiftUI struct PresentPage: View { var body: some View { Text("Hello, world again!") .font(.title) } } import TipKit struct MyTip: Tip { var title: Text { Text("Test") } var message: Text? { Text("Hi") } } When the TipKit notification appears, the 'present sheet' button will be non-functional. (iPhoneSE Landscape Right) When using the iPhone SE (Landscape Right) or its simulator (iPhone SE Landscape Right), running iOS 17.2. Whenever the TipKit notification is triggered and displayed on the screen, the 'present sheet' button, which is typically used for presenting a new sheet within the app, becomes non-functional. Device: iPhoneSE iOS 17.2 Does anyone know how to bypass this bug？ Thank you.