Hello everyone, I need to update view with core data values but I'm doing something wrong with @StateObject or @Observedobject or something like this. Explanation I have 1 main view called MainView that contains 2 views TagViewPhone() this view contains a list of buttons, the idea is when you click a button it filters the list of words inside WordView2() For example if you click Tag ( Colors) Only show the words that have the relation with Tag (Colors) Problem In my WordViewModel.getWordsFor(tag:Tag) filters that, and it works but WordView2() never update the view Core data entities I have 2 Entities with relation Many to Many Word : id,text and relation wordToTag with destination Tag and inverse tagToWord Tag: id,text, and relation tagToWord with destination Word and inverse wordToTag Views MainView struct MainView2: View { var body: some View { ZStack{ Color("colorBackground").edgesIgnoringSafeArea(.all) VStack{ TagViewPhone() WordView2().padding(.horizontal) } } } } WordView2 struct WordView2: View { @ObservedObject private var wordViewModel = WordViewModel() var body: some View { ScrollView(.vertical){ ForEach(wordViewModel.words) { word in Text(word.text ?? "X") } } } } TagViewPhone struct TagViewPhone: View { @Environment(\.managedObjectContext) private var viewContext @FetchRequest(sortDescriptors: [NSSortDescriptor(keyPath: \Tag.text, ascending: true)],animation: .default) private var tags:FetchedResults<Tag> @ObservedObject var wordViewModel = WordViewModel() var body: some View { ScrollView(.horizontal) { HStack{ ForEach(tags, id:\.id) {tag in Button { wordViewModel.getWordsFor(tag: tag) } label: { HStack{ Text(tag.text!).bold() .padding(.horizontal) .padding(.vertical,5) } } } }.padding(.all) } } } ViewModel WordViewModel class WordViewModel: ObservableObject { @Published var words:[Word] = [] let moc = PersistenceController.shared.container.viewContext // Context init() { fetchAllWords() } func fetchAllWords() -> Void { let fetchRequest: NSFetchRequest<Word> fetchRequest = Word.fetchRequest() words = try! moc.fetch(fetchRequest) } func getWordsFor(tag:Tag){ let request: NSFetchRequest<Word> = Word.fetchRequest() request.predicate = NSPredicate(format: "ANY wordToTag = %@", tag) do { words = try moc.fetch(request) print (words) } catch let error{ print("Error fetching songs \(error)") } }