The "paywall" I hit is that Trakt limits collections to 100 items (and a TV episode is a single item, so a single large TV show with more than 100 episodes fills up the free tier...)
So if you have more than 100 shows/movies/tv episodes, then it won't scrobble anymore. I have more than Trakt allows on their free tier, so it can't scrobble. Every time Jellyfin tries to scrobble something it just receives an error from Trakt because my collection is full and the new show/movie can't be added.
So if you have more than 100 shows/movies/tv episodes, then it won't scrobble anymore. I have more than Trakt allows on their free tier, so it can't scrobble. Every time Jellyfin tries to scrobble something it just receives an error from Trakt because my collection is full and the new show/movie can't be added.