Hey sorry for taking so long but it sounds like you were taking a quest where you had to slay a beast normally a player just walks to the nearest cave or you could hav been atop thee right tile and the game was just acting funny hope this helps.
I needed to kill a specific beast which home was in a direction from me, i started walking in the direction but after some time the quest tracker instead of giving the direction started saying somewhere here. But there wasn't any cave.
