Why is the new Aatrox Freezing/Pausing during his autoattack animations?

I have seen people mentioning this in some posts as well but there is something more detailed that happens with the model. After the new Aatrox finishes his autoattack the last frame has him freezing like a statue and he isnt doing anything before autoskipping to the next attack. I think there might be two reasons because of this

first- It was intentional by making him completely stop after the attack as the dramatic effect of when the swordsman sits idle while the enemy gets destroyed or cut (example Zoro & Mihawk from One Piece)

second- The animation was mixed up when copy-pasting the beginning frames to the end to make him return back to his original position, they might have pasted the starting frames a bit later in the end than the correct position so he sits frozen for longer than expected