Strange behavior when using SwiftUI with Combine for network requests in iOS 16.1
I'm working with an scenario with my SwiftUI app when trying to fetch data from a REST API using Combine. Specifically, I have a view that should display a list of users after a network call, but I'm finding that the data isn't being updated in the UI when the network request completes. Here's what I've implemented: ```swift import SwiftUI import Combine class UserViewModel: ObservableObject { @Published var users: [User] = [] private var cancellables = Set<AnyCancellable>() func fetchUsers() { guard let url = URL(string: "https://jsonplaceholder.typicode.com/users") else { return } URLSession.shared.dataTaskPublisher(for: url) .map { $0.data } .decode(type: [User].self, decoder: JSONDecoder()) .receive(on: RunLoop.main) .sink(receiveCompletion: { completion in switch completion { case .finished: break case .failure(let behavior): print("behavior fetching users: \(behavior)") } }, receiveValue: { [weak self] users in self?.users = users }) .store(in: &cancellables) } } struct ContentView: View { @ObservedObject var viewModel = UserViewModel() var body: some View { List(viewModel.users) { user in Text(user.name) } .onAppear { viewModel.fetchUsers() } } } struct User: Codable, Identifiable { let id: Int let name: String } ``` Despite following this pattern, the `users` array is not being updated in the UI after the data fetch. When I print out the users after the network call, they appear correctly in the console, but the List view does not reflect this change. I suspect it might be an scenario with how `@ObservedObject` works in conjunction with Combine in iOS 16.1, as I have seen some odd behavior with state management in this version. I've already tried the following solutions: 1. Ensured that the URL is correct and accessible. 2. Used `@StateObject` instead of `@ObservedObject`, but that didn't yield any different results. 3. Checked for any threading issues, and confirmed that my network calls are being executed on the main thread using `.receive(on: RunLoop.main)`. However, I still see the initial state of the UI without updates after the fetch completes. Any insights on what could be going wrong, or if there are any best practices I might be overlooking with Combine and SwiftUI in this context?