GetFile and Event FileTransferred not working?

public bool FetchFiles()
{
    SendMsg = false;
 
    try
    {
        if (!SetConnectionParameters())
        {
            nlog.Error("FTPService: Failed configuring Session Parameters for {name}", currEntity.name);
            return false;
        }
 
        using (Session session = new Session())
        {
            session.ExecutablePath = Path.Combine(CurrContext.FunctionAppDirectory, "winscp.exe");
            session.DebugLogPath = null; //Null means no log path (Path to store assembly debug log)
            session.SessionLogPath = null;  //Null means no log path (Path to store session log path)
            session.FileTransferred += WinSCPFileTransferred;
            try
            {
                if (!session.Opened)
                {
                    session.Open(sessionOptions);
                }
 
                var transferOptions = new TransferOptions
                {
                    TransferMode = TransferMode.Binary,
                    OverwriteMode = OverwriteMode.Overwrite,
                };
 
                nlog.Info("FTPService: Session Open for {name}. About to Get files", currEntity.name);
                GetFilesAndUploadAsync(session);
            }
            catch (Exception ex)
            {
                nlog.Error(ex, "FTPService: Exception Opening Session Parameters for {name}.", currEntity.name);
                return false;
            }
        }
    }
    catch (Exception ex)
    {
        nlog.Error(ex);
        return false;
    }
    return true;
}
 
 
private void GetFilesAndUploadAsync(Session conn)
{
    try
    {
        string filePath = null;
 
        //Get a List of Files in Directory - seems to be +1 of the actual file count...
        RemoteDirectoryInfo directory = conn.ListDirectory(currEntity.remotefolder);
        Stream stream;
        nlog.Debug("Number of files in remote directory:{count}",directory.Files.Count-1);
        foreach (RemoteFileInfo fileInfo in directory.Files)
        {
            if (!fileInfo.Name.Equals(".") & !fileInfo.Name.Equals(".."))
            {
                nlog.Debug(
                    "{0} with size {1}, permissions {2} and last modification at {3}",
                    fileInfo.Name, fileInfo.Length, fileInfo.FilePermissions,
                    fileInfo.LastWriteTime);
 
                filePath = currEntity.remotefolder + "/" + fileInfo.Name;
 
                //only supported for SFTP - otherwise will throw exception!
                //GetFile/Putfile from WinSCP returns a custom and very limited implementation of Stream. 
                //it CANNOT be seeked i.e. SetLength/Position not allowed
                stream = conn.GetFile(filePath); 
 
                if (PushFileToAzureBlobContainer(stream, fileInfo.Name))
                {
                    try
                    {
                        stream.Dispose();
                        conn.RemoveFile(filePath);
                    }
                    catch (Exception ex)
                    {
                        nlog.Error(ex, "FTPService: Exception removing file {filename} from remote directory for {name}.", fileInfo.Name, currEntity.name);
                    }
                }
                stream.Dispose();
            }
        }
    }
    catch (Exception ex)
    {
        nlog.Error(ex, "FTPService: Exception listing remote directory for {name}.", currEntity.name);
    }
}