혹 관련이 있을 수도 있어서 API 문서를 링크를 남깁니다.
https://developer.android.com/reference/android/app/DownloadManager
addCompletedDownload(String title, String description, boolean isMediaScannerScannable, String mimeType, String path, long length, boolean showNotification)
This method was deprecated in API level 29. Apps should instead contribute files to MediaStore.Downloads collection to make them available to user as part of Downloads.
addCompletedDownload(String title, String description, boolean isMediaScannerScannable, String mimeType, String path, long length, boolean showNotification, Uri uri, Uri referer)
This method was deprecated in API level 29. Apps should instead contribute files to MediaStore.Downloads collection to make them available to user as part of Downloads.
위의 두 메소드는 Android 10부터 deprecated되었네요. 혹 이 메소드들을 사용하신다면 관련이 있을 수도 있을 것 같아요.