realm-swift: Object has been deleted or invalidated - only throwing error on device that deletes the object.

I am a fairly new developer and I am using Xcode and Swift 5.1.

I am getting the error above when I delete a Member object from the Realm on the device that deletes it. All other devices running at the same time handle the deletion fine. Here is the setup:

1. I have Members in a firestore database.
2. I have a firestore observer that observes changes in that database and writes the changes to Realm on the device.
3. In viewWillAppear in the MainVC I load the Members from Realm. And I set up a notification listener to observe changes in the Members in Realm.
4. In a SettingsVC, I also also load the Members from Realm and set up a notification listener there as well.
5. In the SettingsVC, I delete a Member using a google cloud function, which removes the member from the firestore database.
6. My firestore observer picks up the changes and removes the Member from the Realm file.
7. The listener in the SettingsVC, where the removal was done, picks up the changes in Realm and removes the Member from the tableView.
8. Then it crashes with the error above.
9. Note, if I have 3 simulators open at the same time and running the same version of the app, only the simulator (or device) that actually deletes the Member crashes. The other two remove the Member from the tableview and do not crash.

Here is the code found in the MainVC and the SettingsVC to load the Members and set up the notification listener:

var members:Results<Member>?

    // Get the members from Realm.
    UserService.loadMembers { (members) in
        self.members = members
    }
    
    // Set up a listener for changes in the members.
    memberNotificationToken = members?.observe { [weak self] (changes: RealmCollectionChange) in
        // Make sure tableView has not been dismissed
        guard let tableView = self?.tableView else { return }
        tableView.reloadData()
    }
}

// Turn off the listener.
deinit {
    memberNotificationToken?.invalidate()
}

Here is the code in UserService.loadMembers:

static func loadMembers(completion: @escaping (_ members:Results<Member>?) -> Void) {
    
    // Get a reference to the Realm database where the members are stored.
    let realm = try! Realm()
    // Get the members.
    let members = realm.objects(Member.self).sorted(byKeyPath: "displayName")
    // Send them back.
    completion (members)
}

Here is the code to delete the Member:

            UserService.deleteUser(memberToDelete: memberToDelete, completion: { status in
                if status != nil {
                    Alerts.showBasicAlert(title: Generic Title, message: Generic message) { (alertController) in
                        self.present(alertController, animated: true)
                    }
                    // Reload the table.
                    tableView.reloadData()
                }
            })
        })

Version of Realm and Tooling

Realm 4.1.0 Xcode version: 11.2.1 iOS/OSX version: ? 13.0

Any help would be appreciated. I’ve been trying to solve this for two days.