Originally Posted by Axort

@torfreak - i don't have that much expierence with cross-seeding, but well its great to save space on your HDDS and have more of each torrent

well, you could try to install utorrent and see if it works with another client, maybe you could also try to reinstall qbittorrent, or update it if you haven't done in the last days.

as said in chatbox - this can be a long (and unfunny) story of trail and errors - but you said it works for other torrents, so its really hard to guess whats the problem.

True, I found a thread on some other site via Google search; it seems there is nothing much you can do if the error says something like "torrent already in the download list". So I guess it has something to do with the .torrent file itself. (here)

Move to uTorrent will take some efforts...will have to open the port in router and firewall...and move all existing torrents there. Maybe tomorrow.

Thanks,