I completed the entire map Blooming Field T15, but one elite was left that, despite being able to hit me, I couldn't use any skills on, as if it were invulnerable. I tried restarting the game and changing the server without success; the mob remains invulnerable and prevents me from completing the map.
![](https://i.postimg.cc/tYyVLty2/Blooming-Field-Bug.jpg)