As the title states, whenever I enter combat as soon as I kill the last enemy I remain in combat and there is an invisible enemy that continues to attack me with bow attacks and flying blades. This was happening to me yesterday so I stopped playing for the night, turned on the game today and the same thing is happening. It has made the game unplayable because I cant even aoe this phantom enemy because it has no source. The attacks come randomly from all around me. Is this a known bug? How can I fix this?