Failed to find a currently activated model container

Hi, i'm trying out SwiftData in Xcode 15.0 beta 5.

I’m building a POC of a Note app using SwiftData for the data persistence. I started by creating a new model SimpleNote, where i could successfully implement a CRUD of a note.

Now i want to add a new feature introducing the TODO list, however when i tried add the new relationship between the new model TodoItem to SimpleNote the app crashes with the following error:

NotesPOC crashed due to fatalError in ModelContainer.swift at line 167. failed to find a currently active container for SimpleNote

Both models works fine independently, only crashes when the Relationship is set. I tried to clean simulator data, remove DerivedData, clean the Build Folder but nothing works.

The code:

SimpleNote.swift:

final class SimpleNote: Identifiable {
  let uuid = UUID()
  var title: String = ""
  var content: String = ""
  var createdAt: Date = Date()
  var modifiedAt: Date = Date()
  var theme: String = ""
  @Relationship(.cascade) var todoList: [TodoItem] = []
  
  init(title: String, content: String, createdAt: Date, modifiedAt: Date, todoList: [TodoItem]) {
    self.title = title
    self.content = content
    self.createdAt = createdAt
    self.modifiedAt = modifiedAt
    self.theme = Theme.random().rawValue
    self.todoList = todoList
  }
}

TodoItem.swift:

import Foundation
import SwiftData

@Model
class TodoItem: Identifiable {
  let uuid = UUID()
  var isCompleted: Bool = false
  var content: String = ""
  
  init(isCompleted: Bool, content: String) {
    self.isCompleted = isCompleted
    self.content = content
  }
}

NoteApp.swift:

import SwiftData

@main
struct StickyNotesPOCApp: App {
  var body: some Scene {
    WindowGroup {
      NavigationStack {
        ContentView()
          .frame(maxWidth: .infinity, maxHeight: .infinity)
          .background(.black)
      }
    }
    .modelContainer(for: [SimpleNote.self, TodoItem.self])
  }
}

Has anyone faced this issue? am i missing something?