It's been a while, but there were some issues with the offline queue functionality with Hachidori.
We just implemented some fixes so scrobbling Anime to AniList/MAL/Kitsu when the user goes back online doesn't end up in an endless loop, especially when an update requires confirmation before they are applied to the user's list.
https://github.com/Atelier-Shiori/hachidori/commit/58fcca83a08a593a7a5c2562101d57d77bc8ea57