I think I found an answer to some of you here. I tried to start a torrent on tpb before I opened bittorrent, when i opened it there was a new version (7.8), so I updated it normally, it closed and opened back again, but then the torrent wasn't there anymore and when I tried to click on the magnet link again bittorrent said the torrent was already on the my list etc. It was indeed, but I believe it was labeled as "hidden" and stopped automatically after the update. so you just need to go there on the left side of bittorrent on the "Labels" part and look for the hidden torrents. then it's simple, just right click on the torrent, go to "labels" there and unclick in "hidden".