I’m trying to complete my collection of a show and up until maybe a year ago the season and episode # in the torrent name has been completely wrong. No idea why. For example if I’m looking for season 18 episode 17 and I find a torrent for that episode chances are pretty good the episode I download isn’t actually for S18E17.
So if you make torrents and include the episode title in the torrent’s name, thank you.
Another situation is multi-episode releases. I remember first encountering this with LOST where the 2h season finale would be listed as two separate episodes, which for a season finale wasn’t too annoying. More recently, later seasons of The Good Place would air two episodes at a time, and that always caused a mess as well that required manual intervention sometimes.
Mine is NOVA where TVDB decides that some episodes are “specials” and puts them in the season 0 folder despite PBS, NOVA, and the uploader listing them as normal season episodes. Sonarr doesn’t know this so they get relabled as the wrong episode which I then have to go back and fix along with every later episode typically as I’m getting to watch that specific episode.