I've added a few torrents (now 20 total) to existing and it became download with 10kB/s insted of 3MB/s I tryed to close it an it hang. I killed utorrent.exe, then rerun. All the new torrents in list have status Checking 0.0% except last added, it download speed was ok until I added a new torrent. Then I removed last added torrent. Now all the new torrents have status Checking 0.0%. If I stop torrent with Checking 0.0% status and then start anyone of them utorrent hangs and become to load 1 core of my processor.