So the torrent I was talking about has been stuck at 99% for longer than a year until one day, miraculously, a seed appeared. Tixati would show this peer with 100% (thus, a seed) in the list (the single one) but simply would not connect to it. Then, kind of desperate for losing this one peer after so long, I installed another torrent client (qBittorent) and it simply finnished the download in a few seconds. Why would this happen?