"Cannot remove an observer <RealmSwift.SwiftUIKVO 0x6000000c00e0> for the key path \"myId\" from <RLM:Unmanaged MyModel 0x6000037fa8a0> because it is not registered as an observer."

import SwiftUI
import RealmSwift //minimum version 10.6.0 Realm and 10.5.0 RealmDatabase from https://github.com/realm/realm-cocoa using Swift Package Manager

//MARK: - Realm Model

@objcMembers class MyModel: Object, ObjectKeyIdentifiable {
    dynamic var myId = ""
    dynamic var text = ""
    dynamic var desc = ""
    
    override static func primaryKey() -> String? {
        return "myId"
    }
    
}

//MARK: - Root View

struct ContentView: View {
    
    @ObservedResults(MyModel.self) var myModel
    
    @State var navigationViewIsActive: Bool = false
    
    var body: some View {
        
        NavigationView {
            VStack {
                
                Text("Click the plus in the toolbar to add some test entries")
                
                List {
                    ForEach(myModel) { model in
                        
                        NavigationLink(destination: SecondView(navigationViewIsActive: $navigationViewIsActive, selectedEntry: model))
                        {
                            Text(model.text)
                        }
                        
                    }
                }
            }
            .toolbar {
                
                ToolbarItem(placement: .navigationBarLeading){
                    Button(action: {
                        
                        let model = MyModel()
                        model.myId = UUID().uuidString.lowercased()
                        model.text = UUID().uuidString.lowercased()
                        
                        do {
                            let realm = try Realm()
                            try realm.write {
                                realm.add(model, update: .modified)
                                print("adding new entry to models")
                            }
                        } catch let error {
                            print(error.localizedDescription)
                        }
                        
                        
                    }, label: {
                        Image(systemName: "plus")
                    })
                }
                
            }
            
        }
    }
}


//MARK: - SecondView

struct SecondView: View {
    
    @Binding var navigationViewIsActive: Bool
    
    @ObservedRealmObject var selectedEntry: MyModel
    
    @State var showThirdView = false
    
    var body: some View {
        
        VStack {
            Text("Selected Entry:")
            Text(selectedEntry.text)
            Button(action: {
                print("show third view")
                self.showThirdView = true
            }, label: {
                Text("Click to show Third View")
            })
        }
        
        NavigationLink(destination: ThirdView(navigationViewIsActive: $navigationViewIsActive, selectedEntry: selectedEntry), isActive: $showThirdView, label: {EmptyView()})
        
    }
}

//MARK: - Third View

struct ThirdView: View {
    
    @Binding var navigationViewIsActive: Bool
    
    @ObservedRealmObject var selectedEntry: MyModel
    
    var body: some View {
        VStack {
        Text("Selected Entry:")
        Text(selectedEntry.text)
        Button(action: {
            print("delete this entry")
            self.navigationViewIsActive = false
            
            
            do {
                let realm = try Realm()
                try realm.write {

                    let myEntryIwantToDelete = realm.objects(MyModel.self).filter("myId=%@", selectedEntry.myId)

                    realm.delete(myEntryIwantToDelete)
                }
                print("deleting entry via realm")
            } catch {
                print("Error")
            }
            
            
            
        }, label: {
            Text("Delete this entry and go back to root view")
        })
          Text("after i click this button and navigate back i get the error")
        }
    }
}

ProductName:  macOS
ProductVersion:         11.1
BuildVersion:     20C69

/Applications/Xcode.app/Contents/Developer
Xcode 12.4
Build version 12D4e
iPhone 11 Simulator iOS 14.4

pod not found
(not in use here)

/bin/bash
GNU bash, version 3.2.57(1)-release (arm64-apple-darwin20)

carthage not found
(not in use here)

/usr/bin/git
git version 2.24.3 (Apple Git-128)