Once upon a time, uTorrent was a small efficient client. Nowadays, it crashes on large downloads, and the disk overload problem is ever present. Even _if_ I liked 3.x better, 2.x is a necessity for not having an unstable client that hangs/crashes ever so often, so I stick with 2.2.1 until you sort things out - or Qbittorrent gets an import torrent function.