Nami Ult Bug

So. I just played a game (I already feel bad for the other team, they had a horrible troll). Ranked game and all. Well, the enemy Nami ult'd us, and while it did the normal effects on everyone else, I took no damage and just walked through it (similar to the Azir Ult bug people have been seeing). I would printscreen it, but it's just showing up as a blackscreen. Also, the replay is skippy as all hell.

Anyway. Yeah, thought I should point it out.