UINavigationItemRenameDelegate does not work in IOS 16

I have an iPad app which is trying to support document renaming in the title bar. For IOS 17+ I set the renameDelegate to the document instance and it works fine. For IOS 16 I need to create an actual delegate, but no matter how I structure the code it fails with a permission error:

Rename failed: “original_file_name” couldn’t be moved because you don’t have permission to access “Desktop”.

It seems to always happen accessing the parent directory. I have tried using the file coordinator as well with the same result. It seems impossible to implement unless the callback contains a security permissioned url for the parent directory.

Is there anyway to make this work in IOS 16 in the sandbox? Do I have to create my own rename functionality using a FilePicker? Seems like this should be built in like it is in MacOS, or even IOS17+

Here is the code:

extension DocumentWindow : UINavigationItemRenameDelegate {
    func navigationItem(_ navigationItem: UINavigationItem, didEndRenamingWith title: String) {
        guard let doc = document else { return }
        let oldURL = doc.fileURL

        let newURL = oldURL.deletingLastPathComponent()
            .appendingPathComponent(title)
            .appendingPathExtension(oldURL.pathExtension)

        if newURL == oldURL { return }

        let access = oldURL.startAccessingSecurityScopedResource()
        defer { if access { oldURL.stopAccessingSecurityScopedResource() }}

        do {
            try FileManager.default.moveItem(at: oldURL, to: newURL)
        } catch {
            print("Rename failed: \(error.localizedDescription)")
        }
//
//        // 1. Jump to a background queue to avoid the deadlock
//        DispatchQueue.global(qos: .userInitiated).async {
//            let coordinator = NSFileCoordinator(filePresenter: doc)
//            var error: NSError?
//
//
//            coordinator.coordinate(writingItemAt: oldURL, error: &error) { outOld in
//                do {
//                    // 2. Perform the actual rename
//                    try FileManager.default.moveItem(at: outOLD, to: newURL)
//                } catch {
//                    print("Rename failed: \(error.localizedDescription)")
//                }
//            }
//
//            if let error = error {
//                print("Coordination error: \(error.localizedDescription)")
//            }
//        }
    }

    // 2. Optional: Validation (e.g., prevent empty names)
    func navigationItem(_ navigationItem: UINavigationItem, shouldEndRenamingWith title: String) -> Bool {
        return !title.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty
    }
}