Quest Legacy (Skellige) (The Witcher 3: Wild Hunt)

That's the problem with this quest. I play for the second time. Prior to patch 1.07, the quest ran without problems. This is a simple treasure hunt. It is located in the village of Boxholm. There are still a few eaters hanging around nearby. Now the problem is that the key that needs to open the chest has disappeared. Tell me, who knows the solution.