Stalled torrents despite connected seeds.

[Jackal]

Hi all, I've been using qBittorrent for a while now and I think it's great.
I am having trouble understanding how torrents work now due to a bunch of torrents I am currently trying to download. I have searched google and even these forums to try and better understand before I posted this but I'm sorry if I somehow missed the answers.

Generally I assumed that if I was connected to seeds that I would download the pieces I am missing and that the number outside of the parenthesis is the number of users I'm actually connected to.
I've had qbittorrent open non-stop for several days and all of these torrents have stalled despite being connected to seeds. For example, this one torrent I have been stuck at 95.4% for a couple of days even though the whole time it has said I have been connected to at least a couple of seeds. Right now it says "5(6)" for seeds yet nothing is happening.

These are older torrents, so I can understand the low count of seeds and peers, and newer torrents still work fine for me. I'm just wondering why these ones aren't.

[Switeck]

Either the seeds are "fake" and trying to poison the torrent, or it's yet another qBitTorrent bug.

Try qBT v3.3.16 and/or v4.0.4 and see if that helps.
...If not, it could be a bug in qBT or libtorrent.