Some say the snowboss gets glitched when it gets cornered. Maybe the npc has to move to the middle of the map? just a suggestion
No, it has nothing to do with that. Simply someone has not forfeited their quests and they end up glitching the monster.
If the snowman is killed on the edge of the map the presents should stay on the map, there may be a pile of like 25 in the far right corner possibly. But I have had no confirmations that killing in the corner glitches the presents.
