It appears that numbering for season 43 (the current one) of Saturday Night Live is off between TVDB (and trakt) and the Scene numbering, by 2 episodes. For example what TVDB thinks is episode
43x12, Scene thinks is 43x14:
Alternately, you can delete the 43x12 episode you probably have with the content of the show two weeks ago, download 43x14 manually, and rename it to 43x12 before you manually import. That’s what I ended up doing.
BTW, this and other live/periodic shows like The Graham Norton Show are strong justifications for the “do not download before airdate” flag being discussed elsewhere.