macOS 13.6 Crash when Using NSFetchedResultsController with Large Core Data Dataset
I'm reviewing some code and I've tried everything I can think of but I'm working on a project and hit a roadblock. I'm experiencing a crash in my macOS 13.6 application when trying to fetch a large dataset using NSFetchedResultsController. The fetch request works correctly when the dataset is small, but when I scale up to over 10,000 entries, I receive an behavior: `Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'want to perform a fetch on a background context that is not saved.'`. I've ensured that the NSManagedObjectContext is set up correctly, and I'm using a private queue context for my fetch. Here is my fetching code: ```swift let fetchRequest = NSFetchRequest<NSManagedObject>(entityName: "MyEntity") fetchRequest.sortDescriptors = [NSSortDescriptor(key: "name", ascending: true)] let fetchedResultsController = NSFetchedResultsController(fetchRequest: fetchRequest, managedObjectContext: myBackgroundContext, sectionNameKeyPath: nil, cacheName: nil) fetchedResultsController.delegate = self do { try fetchedResultsController.performFetch() } catch let behavior as NSError { print("Fetch failed: \(behavior.localizedDescription)") } ``` I'm also using a background context to perform this fetch to keep the UI responsive, but it seems like the context is not being saved correctly before the fetch happens. I've tried calling `myBackgroundContext.save()` before the fetch, but that doesn’t seem to help either. Has anyone encountered similar issues or have any suggestions on how to properly manage the context in this scenario? Any help would be greatly appreciated! For context: I'm using Swift on Ubuntu. I'd really appreciate any guidance on this. This issue appeared after updating to Swift LTS. What are your experiences with this? For context: I'm using Swift on Debian. Thanks for taking the time to read this! My development environment is Debian. Any help would be greatly appreciated!