ensembles: CDEEEventIntegrator mergeEventsWithCompletion:_block_invoke.91 Causing App Crash

My project was already up and running using Ensembles however once I migrated to Swift 3 my app now crashes. However the errors all point to the framework when debugging. I keep seeing the following error in the console when syncing;

Could not load any Objective-C class information. This will significantly reduce the quality of type information available.

or when I leave the app running I get the following memory issue

Message from debugger: Terminated due to memory issue

And when I dig further using instruments I found that the CPU over 100%, and memory and energy impact both high. When the app crashes It takes me to CDEEventIntegrator class, mergeEventsWithCompletion function and the dispatch line for `“integrate on background queue”.

Im unsure how to resolve this error, and I even turned iCloud drive for the app off in settings however the app still crashes sometime after launching. I have found with iCloud ManagedObjects would keep duplicating.

Here’s my Swift 3 functions in the appDelegate.

    // MARK: Ensembles

    var cloudFileSystem: CDECloudFileSystem!
    var ensemble: CDEPersistentStoreEnsemble!

    func syncWithCompletion(completion:@escaping (_ completed:Bool) -> Void) {

        if !ensemble.isLeeched {
            ensemble.leechPersistentStore { error in
                if error != nil {
                    print("cannot leech \(error!.localizedDescription)")
                    completion(false)
                }
                else {
                    print("leached!!")
                    completion(true)
                }
            }
        }
        else {
            ensemble.merge{ error in
                if error != nil {
                    print("cannot merge \(error!.localizedDescription)")
                    completion(false)
                }
                else {
                    print("merged!!")
                    completion(true)
                    //NSNotificationCenter.defaultCenter().postNotificationName("Updated-DB", object: nil)
                }
            }
        }
    }

    func persistentStoreEnsemble(_ ensemble: CDEPersistentStoreEnsemble, didSaveMergeChangesWith notification: Notification) {
        managedObjectContext.performAndWait {
            print("Database was updated from iCloud")
            self.managedObjectContext.mergeChanges(fromContextDidSave: notification as Notification)
            NotificationCenter.default.post(name: NSNotification.Name(rawValue: "Updated-DB"), object: nil)
        }
    }

    private func persistentStoreEnsemble(ensemble: CDEPersistentStoreEnsemble!, globalIdentifiersForManagedObjects objects: [AnyObject]!) -> [AnyObject]! {
        return (objects as NSArray).value(forKeyPath: "uniqueIdentifier") as! [AnyObject]
    }

This is what I am seeing in the console

As mentioned the project was working in previous versions of Swift, but now that my functions have been migrated to Swift 3 I am getting the errors mentioned. Does anyone have any ideas why this might be happening ?

PS: I was actually running final tests before submitting my app for iOS 10 and unfortunately this issue has prevented that. Weird how I haven’t had any issues until today