Hey there, does someone know why the ContentUnavailableView is behaving differently on iOS 26 than in iOS 18 but the code is the same?

Hello everyone, how can I change the standard pin icon to another? And how is it possible when I tap on the pin that an additional popup view opens in which the name of the city is at the top and that the associated image from the PhotoView is displayed? How could I best implement this? Thanks in advance MapView import MapKit import SwiftUI struct City: Identifiable {     let id = UUID()     let name: String     let coordinate: CLLocationCoordinate2D } struct MapView: View {     @State private var region = MKCoordinateRegion(center: CLLocationCoordinate2D(latitude: 46.62407, longitude: 8.03434), span: MKCoordinateSpan(latitudeDelta: 0.1, longitudeDelta: 0.1))          let annotations = [         City(name: "Alte Strasse(Zuhause)", coordinate: CLLocationCoordinate2D(latitude: 46.63649, longitude: 7.97512)),         City(name: "Stalden1", coordinate: CLLocationCoordinate2D(latitude: 46.63937, longitude: 7.97216)),         City(name: "Stalden2", coordinate: CLLocationCoordinate2D(latitude: 46.63873, longitude: 7.96684)),         City(name: "Scheideggstrasse(Wetterhorn)1", coordinate: CLLocationCoordinate2D(latitude: 46.63353, longitude: 8.07356)),         City(name: "Scheideggstrasse(Wetterhorn)2", coordinate: CLLocationCoordinate2D(latitude: 46.63293, longitude: 8.07380)),         City(name: "Scheideggstrasse(Wetterhorn)3", coordinate: CLLocationCoordinate2D(latitude: 46.63313, longitude: 8.07329)),         City(name: "Scheideggstrasse(Wetterhorn)4", coordinate: CLLocationCoordinate2D(latitude: 46.63456, longitude: 8.07337)),         City(name: "Obere Gletscherstrasse(Wetterhorn)", coordinate: CLLocationCoordinate2D(latitude: 46.63205, longitude: 8.07022)),         City(name: "Obere Gletscherstrasse(Hotel Blümlisalp)", coordinate: CLLocationCoordinate2D(latitude: 46.63173, longitude: 8.06699)),         City(name: "Itramenstrasse", coordinate: CLLocationCoordinate2D(latitude: 46.62060, longitude: 7.99514))     ]     var body: some View {         Map(coordinateRegion: $region, annotationItems: annotations) {             MapMarker(coordinate: $0.coordinate)             }         .onAppear {             MKMapView.appearance().mapType = .satellite         }             }     struct MapView_Previews: PreviewProvider {         static var previews: some View {             MapView()         }     } } PhotoView struct ContentView: View {     var images: [String] = ["noaa1", "noaa2", "noaa3", "noaa4", "noaa5", "noaa6", "noaa7", "noaa8", "noaa9", "noaa10", "noaa11", "noaa12", "noaa13", "noaa14", "noaa15", "noaa16", "noaa17", "noaa18"]          var columnGrid: [GridItem] = [GridItem(.fixed(180), spacing: 16), GridItem(.fixed(180), spacing: 16)]              var body: some View {         NavigationView {             ScrollView {                 LazyVGrid(columns: columnGrid, alignment: .center, spacing: 16) {                     ForEach(images, id: \.self) { image in                         NavigationLink (destination: ImageDetail(imageName: image)) {                             Image(image)                                 .resizable()                                 .scaledToFit()                                 .cornerRadius(10)                         }                     }                 }             }.navigationBarTitle(Text("Test"), displayMode: .inline)         }.navigationViewStyle(.stack)     } }

Recently I've been working on a demo project called iLibrary. The main goal was to learn more about CloudKit and SwiftData. After a while I noticed that there were some hangs/freezes when running the app in debug mode. I first tried this with Xcode 15.4 and iOS 17.5. Here the hang only appears at the beginning, but only for a few seconds. But when I exit debug mode, there are no more hangs. With Xcode 16 beta 4 and iOS 18 it looks completely different. In this case, the hangs and freezes are always present, whether in debug mode or not. And it's not just at the beginning, it's throughout the app. I'm aware that this is still a beta, but I still find this weird. And when I profile this I see that the main thread gets quite overloaded. Interestingly, my app doesn't have that many operations going on. So I guess something with the sync of SwiftData or my CloudKitManger where I fetch some records from the public database is not running fine. Lastly, I wanted to delete the iCloud app data. So I went to Settings and tried to delete it, but it didn't work. Is this normal? Does anyone have any idea what this could be? Or has anyone encountered this problem as well? I'd appreciate any support. My project: https://github.com/romanindermuehle/iLibrary