React Native - Save Network Image to iOS Camera Roll - Solved: error PHPhotosErrorDomain error -1

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I am downloading the video from an ip camera which is downloaded to DocumentDir , and then trying to save in photos (which is working fine on android) but Ios shows error:

“The operation couldn’t be completed (PHPhotosErrorDomain error 3302)”

This is my code to download the video:

const handleDownload = async filePath => {
const videoPath = filePath.split('A:')[1].replace(//g, '/');
const vUrl = http://${selectedCamera.ip}/${videoPath};
const {config, fs} = RNFetchBlob;
const downloads = Platform.OS === 'ios' ? fs.dirs.DocumentDir : fs.dirs.DownloadDir;

const tsFilePath = `${downloads}/${videoPath.split('/').pop()}`;
const mp4FilePath = tsFilePath.replace('.TS', '.mp4');

// Check if the video is already downloaded
const storedDownloads =
JSON.parse(await AsyncStorage.getItem('downloads')) || [];
const isAlreadyDownloaded = storedDownloads.some(
video => video.filePath === mp4FilePath,
);

if (isAlreadyDownloaded) {
Alert.alert(
'Already Downloaded',
'This video has already been downloaded.',
);
return; // Exit the function early
}

// If not downloaded, proceed with download
setTimeout(() => dispatch(DownloadLoader()), 700);

try {
const response = await config({
fileCache: true,
path: tsFilePath,
}).fetch('GET', vUrl)
.progress((received, total) => {
const progress = received / total;
setDownloadProgress(progress); // Update progress
});

await FFmpegKit.execute(`-i ${tsFilePath} -c copy ${mp4FilePath}`);

await fs.unlink(tsFilePath);

/*saving the file in albums */

let savedUri = null;
try {
savedUri = await CameraRoll.save(mp4FilePath, {type: 'video'});
Alert.alert('Saved to Photos ', 'Video has been saved to your Phone Album');
console.log(savedUri);
} catch (saveError) {
Alert.alert(
'Save Failed',
`Failed to save video to Photos: ${saveError.message}`,
);
}

const downloadedVideo = {
name: mp4FilePath.split('/').pop(),
filePath: savedUri,
url: vUrl,
};
dispatch(addToDownloads(downloadedVideo));

storedDownloads.push(downloadedVideo);
await AsyncStorage.setItem('downloads', JSON.stringify(storedDownloads));

console.log(downloadedVideo);

} catch (error) {
Alert.alert('Download Failed', `Error: ${error.message}`);
} finally {
setTimeout(() => dispatch(DownloadLoader(false)), 700);
}
};

issue is not with file extension , it is (.mp4) , checked on android as well
I have given necessary permissions also in info.plist , still I am receiving this error on ios
any solutions? for this

packages:
"react-native": "0.74.2",
"rn-fetch-blob": "^0.12.0",
"@react-native-camera-roll/camera-roll": "^7.8.3",