Sonarr version (exact version): 4.0.13.2932
Mono version (if Sonarr is not running on Windows):
OS: Windows 10
Debug logs:
Description of issue:
I have a torrent download that’s stuck at 0% stalled.
I delete the torrent, I go into history on the episode and click “Mark as Failed” for that download.
It immediately re-adds the exact same torrent every single time.
At one point it even added a 2nd torrent (also broken) but both are still listed as downloading and I can remove neither without them both being added back immediately afterward.
Is this expected behavior? Other posts are claiming this is supposed to have some kind of blacklist effect?
It absolutely does, but sounds like it could be coming from another indexer or not blocked because the torrent hash isn’t know at the time of grab.
Enabling Reject Blocklisted Torrent Hashes While Grabbing on each indexer may help as that can compare the hash after grabbing the magnet/torrent.
I went ahead and did that! 
After talking through it on discord however, I think maybe my issue has more to do with the specific “mark as failed” button I’m clicking on. Because if I do it through the activity view, it works as expected.