Is the quest "The Anniversary Adventure" bugged or working as intended? I hoped that it would work as the Yule Festive Flurry quests and only reset the active stage you had started when the Anniversary Festival ended and be able to continue the quest when the festval encore started. For those of my characters, that was on the final stage, all have got the quest reset to the first stage again, thus making this festival encore much less interesting to do. If these kind of progressive quests will be in the festivals, keep the progress during any encore and do not reset them until next year's festival.