So I downloaded a torrent, which had an okay speed. But

[SSJBartSimpson]

when I woke up it had downloaded 75% and now it's availability is gone and won't download. And yet I downloaded another one and it seems to be handling that one just fine.

[paintball9]

That means their isn't any seeds and the torrent will not complete unless some come back, Basically its a dead torrent. Make sure you look at the amount of seeds before you start a torrent. Like you said another one works, that one isn't dead. And remember to seed to help stop that from happening to other people.