Realm collection "update" not firing iOS notification

[Jeff_Sorrentino]

I’m running the ‘tracker’ tutorial app with mongoDB and an iOS client. Per the tutorial code I’m listening for notifications on the “Task” collection:

    tasks = realm.objects(Task.self).sorted(byKeyPath: "_id")
    notificationToken = tasks.observe { [weak self] (changes) in

When I add or delete a “Task” entity in the linked mongoDB Atlas cluster, the notification fires as expected and my table view updates.

However when I modify the property of a “Task” entity (for example, its name) in Atlas and save the changes, nothing happens i.e. the notification does not fire. Is this expected? (When I reload the table view the data refreshes however it’s not the “live” update I expect)

[Ian_Ward]

@Jeff_Sorrentino This is a known issue with Atlas Collection viewer - it translates an update into a delete and insert instead of an update. If you instead use the mongodb update command, the update notification will fire -

Update Documents — MongoDB Manual

We are working on fixing this