[GAMEPLAY] sivir w still hits when using kayn ult

I recently played a game vs an enemy Sivir and i had to instances where her w hit me while i was mid ult as Kayn once was during a tower dive in the enemy base where I died from her auto attacking a nearby teammate with the crit ricochet killing me and the second instance being in a fight in the river of the bottoms side near elder dragon I used my ultimate on Sivir and as she was auto attacking my teammates my hp was going down .