Bug? - Bot enemy "stuck" in base

Hi, So lately I have been trying most of the champs in the new map of Summoners Rift. The thing is that when I got to the enemy base (already by the end of the game) I notice that if I stayed in front of the base, they won't come out of their base but instead they would walk inside their base like confused champs. I don't want to call directly this "bug" since there can be so many reasons why that they do that. Anyway I attach an screenshot I made to understand the point. On the picture i'm standing while the champs walking inside the base without coming out.
Report as:
Offensive Spam Harassment Incorrect Board