A.A. Attanasio’s The Last Legends of Earth. This book is absolutely bonkers, and I don’t mean that as a slight. It has, among other things, a race of sentient spiders called the zotl which feed off of the pain of sentient creatures. It’s a wild ride.
Something like this happened to me once before. I sent a pm to the tracker staff to ask about it; they responded that a leecher had a borked client causing it to repeatedly download the torrent again. I suspect something like that is what is happening here.