After being partially behind a wall and seeing the Wither skeleton switching states, I opened a bug report, when getting back in game, I stood out in an open area, The wither skeleton was bugged between states (attack) (neutral), He looked at me and then away several times, this bug was persistent, I must emphasize That I stood out in an open area, I was also in survival mode, this state switching seems to not go away the more time I spend uncovered in front of him