When I try to start catalyst app in Big Sur B6, this error is immediately throw. Tested two differing apps on two differing Macs. The operation couldn’t be completed. (OSStatus error -10670.) Domain: NSOSStatusErrorDomain Code: -10670 User Info: {   "LSFunction" = "LSOpenStuffCallLocal";   "_LSLine" = 3664; }-System InformationmacOS Version 11.0 (Build 20A5364e) Xcode 12.0 (17210.1)

I am using a AttributedString for markdown. When I add the attributed text, it previews correctly. However, when tapping on the URL it fails to load. Bug or not? I'll post a feedback if so. class ViewController: UIViewController { let string = """ **Thank you** and please _visit_ our [Website](https://www.website.com). ```for item in items``` ```let item one be something``` ```end``` ~~Strikethrough~~ """ @IBOutlet weak var label: UILabel! override func viewDidLoad() { super.viewDidLoad() if let attributedText = try? NSMutableAttributedString(markdown: string, options: AttributedString.MarkdownParsingOptions(interpretedSyntax: .inlineOnlyPreservingWhitespace)) { let range = NSRange(location: 0, length: attributedText.mutableString.length) attributedText.addAttribute(NSAttributedString.Key.font, value: UIFont.preferredFont(forTextStyle: .title3), range: range) label.attributedText = attributedText } } }

@available(macCatalyst 18.1, *) @available(iOS 18.1, *) extension CKImageSelectionManager: ImagePlaygroundViewController.Delegate { public func imagePlaygroundViewController(_ imagePlaygroundViewController: ImagePlaygroundViewController, didCreateImageAt imageURL: URL) { } func presentImagePlayground() { let imagePlaygroundVC = ImagePlaygroundViewController() // Set delegate to self to receive the callback imagePlaygroundVC.delegate = self imagePlaygroundVC.isModalInPresentation = true // Prevents dismissal with swipe if needed self.delegate?.presentImageSelectionViewController(imagePlaygroundVC) } } This generates an error in the xcode generated swift header.