[GAMEPLAY] Yasuo autoattack bug

When I am ulting or dashing with E, sometimes Yasuo catch a "lag" and he is just standing and not attacking with his autoattacks as he should do it. Reproducing the bug: Simply get in the teamfight dashing through minions and try to autoattack the champion, or ult the enemy champion and try to autoattack. The bug occurs from time to time but when it did it's very annoying.