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I wrote the code as below for save image from PHImageManager, but a crash occurs. The data is from PHImageManager.default().requestImageDataAndOrientation. Crash Code guard let cgImage = UIImage(data: data)?.cgImage else { return } let metadata = ciImage.properties let destination: CGImageDestination = CGImageDestinationCreateWithURL(url as CFURL, uti as CFString, 1, nil)! CGImageDestinationAddImage(destination, cgImage, metadata as CFDictionary?) let success: Bool = CGImageDestinationFinalize(destination) // <- crashed Not Crash Code guard let cgImage = UIImage(data: data)?.cgImage else { return } let metadata = ciImage.properties let destination: CGImageDestination = CGImageDestinationCreateWithURL(url as CFURL, uti as CFString, 1, nil)! CGImageDestinationAddImage(destination, cgImage, nil) let success: Bool = CGImageDestinationFinalize(destination) // <- not crashed metadata { ColorModel = RGB; DPIHeight = 72; DPIWidth = 72; Depth = 8; PixelHeight = 2160; PixelWidth = 2880; ProfileName = "sRGB IEC61966-2.1"; "{Exif}" = { ApertureValue = "1.356143809255609"; BrightnessValue = "0.1278596944592232"; ColorSpace = 1; ComponentsConfiguration = ( 1, 2, 3, 0 ); CompositeImage = 2; DateTimeDigitized = "2021:12:28 08:38:28"; DateTimeOriginal = "2021:12:28 08:38:28"; DigitalZoomRatio = "1.300085984522786"; ExifVersion = ( 2, 2, 1 ); ExposureBiasValue = "0.09803208290449658"; ExposureMode = 0; ExposureProgram = 2; ExposureTime = "0.025"; FNumber = "1.6"; Flash = 16; FlashPixVersion = ( 1, 0 ); FocalLenIn35mmFilm = 33; FocalLength = "4.2"; ISOSpeedRatings = ( 400 ); LensMake = Apple; LensModel = "iPhone 12 back camera 4.2mm f/1.6"; LensSpecification = ( "4.2", "4.2", "1.6", "1.6" ); MeteringMode = 5; OffsetTime = "+09:00"; OffsetTimeDigitized = "+09:00"; OffsetTimeOriginal = "+09:00"; PixelXDimension = 2880; PixelYDimension = 2160; SceneCaptureType = 0; SceneType = 1; SensingMethod = 2; ShutterSpeedValue = "5.321697281908764"; SubjectArea = ( 2011, 1509, 2216, 1329 ); SubsecTimeDigitized = 686; SubsecTimeOriginal = 686; WhiteBalance = 0; }; "{IPTC}" = { DateCreated = 20211228; DigitalCreationDate = 20211228; DigitalCreationTime = 083828; TimeCreated = 083828; }; "{JFIF}" = { DensityUnit = 0; JFIFVersion = ( 1, 0, 1 ); XDensity = 72; YDensity = 72; }; "{TIFF}" = { DateTime = "2021:12:28 08:38:28"; HostComputer = "iPhone 12"; Make = Apple; Model = "iPhone 12"; Orientation = 0; ResolutionUnit = 2; Software = "Snowcorp SODA 5.4.8 / 15.2"; XResolution = 72; YResolution = 72; }; } What are the reasons? If I use CGimageDestinationAddImageFromSource instead of CGimageDestinationAddImage, there is no crash even if I add metadata. If I use PHImageManager.default().requestImage instead of PHImageManager.default().requestImageDataAndOrientation, and extract cgImage, there is no crash even if I add metadata.