set "kNewTimePitchParam_Pitch" to 500 ~ 1200 will be very easily to reproduce the problem

FB16168030 No response

let desc = "曲に歌ってみた！\n聴いてみてね‎✿ڿڰۣ—\n作詞 " let font = UIFont(name: "HiraginoSans-W3", size: 17)! let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.lineBreakMode = NSLineBreakMode.byTruncatingTail let label = UILabel(frame: CGRect(x: 0, y: 100, width: 340, height: 80)) label.font = font label.textAlignment = .left label.numberOfLines = 2 label.lineBreakMode = .byTruncatingTail label.backgroundColor = UIColor.red label.attributedText = NSAttributedString(string: desc, attributes: [ NSAttributedString.Key.font: font, NSAttributedString.Key.kern: 1, NSAttributedString.Key.paragraphStyle: paragraphStyle, ]) self.view.addSubview(label) print(desc)

let desc = "曲に歌ってみた！\n聴いてみてね‎✿ڿڰۣ—\n作詞 " let font = UIFont(name: "HiraginoSans-W3", size: 17)! let paragraphStyle = NSMutableParagraphStyle() paragraphStyle.lineBreakMode = NSLineBreakMode.byTruncatingTail let label = UILabel(frame: CGRect(x: 0, y: 100, width: 340, height: 80)) label.font = font label.textAlignment = .left label.numberOfLines = 2 label.lineBreakMode = .byTruncatingTail label.backgroundColor = UIColor.red label.attributedText = NSAttributedString(string: desc, attributes: [ NSAttributedString.Key.font: font, NSAttributedString.Key.kern: 1, NSAttributedString.Key.paragraphStyle: paragraphStyle, ]) self.view.addSubview(label) print(desc)

crash stacks