1) Bot in this case was trying to attack 2 different mobs, after time pass bot realize that HP of mob doesn't decrease and then switch target that he can actually attack.
2) We checked geo in this place and we couldn't stuck at all, on video he is running back and forth, so he doesn't stuck.
3) It's 2nd ban of this person for using bot, this is first video ( he changed nick after this ban )
https://www.youtube.com/watch?v=pbQnPmFlGGo&feature=youtu.be