My 2009 iMac finally buckled under the load of my seeding over 5,000 torrents 24/7 with Transmission, so I was forced to purchase another iMac primarily to continue running Transmission. I followed the advice of this 2013 post about what support files also needed to make the move to the new computer:
viewtopic.php?f=4&t=15156&p=66161&hilit ... mac#p66161
Sadly, frustratingly, maddeningly, despite repeating the support files transfer several times, Transmission is not recognizing any of my seeded files on the new computer. (And yes, the same external drives that fed the files to the old Mac are now connected to the new one.) I've scoured the WWW and this site for any newer or better advice and have found nothing.
I bought a new computer primarily to continue seeding everything I've downloaded but I really don't have the time to add all of those torrents back again manually. I would REALLY appreciate any suggestions anyone could give me.