Magnet links do not display data in uTorrent
Solution 1:
Magnet links work by your machine retrieving the torrent information from other peers. This includes the torrent size and etc.
this means when you first download the magnet link file your machine won't know anything about the torrent. After a short while of running the torrent you should find utorrent populates the information. The amount of time taken depends on the number of available peers, etc.