After a lot of testing and diagnosing, I found that when going to a item creation page, creating an item, navigating back to a TabView with a tabViewStyle of PageTabViewStyle and a navigationTitle that is displaying that data, and all inside of a NavigationStack, the app hangs. I have tested this on iOS 18.2, on both a simulator and a physical iPhone 16 Pro Max, and it always hangs, not crashing. However, when run on My Mac (Designed for iPad) and the iPad simulator, it doesn't crash. This could just be a really niche problem, but it might be the result of some other issue that could cause other problems. I have created a minimal reproducible example, stemming from the iOS App template, with SwiftUI and SwiftData. ContentView.swift import SwiftUI import SwiftData struct ContentView: View { @Environment(\.modelContext) private var modelContext @Query private var items: [Item] var body: some View { NavigationStack { TabView { ForEach(items) { item in Text(item.timestamp, format: Date.FormatStyle(date: .numeric, time: .standard)) } } .tabViewStyle(PageTabViewStyle(indexDisplayMode: .automatic)) .toolbar { ToolbarItem(placement: .navigationBarTrailing) { NavigationLink { Button(action: { modelContext.insert(Item(timestamp: Date())) }) { Text("Create Item") } } label: { Text("Creation Page") } } } // When added, crashes the app .navigationTitle("Crash") } } } TestingApp.swift (unchanged) import SwiftUI import SwiftData @main struct TestingApp: App { var sharedModelContainer: ModelContainer = { let schema = Schema([ Item.self, ]) let modelConfiguration = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false) do { return try ModelContainer(for: schema, configurations: [modelConfiguration]) } catch { fatalError("Could not create ModelContainer: \(error)") } }() var body: some Scene { WindowGroup { ContentView() } .modelContainer(sharedModelContainer) } } Item.swift (unchanged) import Foundation import SwiftData @Model final class Item { var timestamp: Date init(timestamp: Date) { self.timestamp = timestamp } }