Background transfer - concurrent transfer not working

I think that files are transferred in a queue and not concurrently.
I have done all settings (see screenshot here: https://i.snag.gy/6lA3m4.jpg)
but transfer is slow and in the queue window I see one line with a file
(which changes after each upload/download).

Can you please help? Thank you![/img]

Upgrade to the latest version of WinSCP to get this feature:
https://winscp.net/tracker/875