[GAMEPLAY] Gnar/Mega Gnar Wallop to Transform Animation

So I'm not sure if this has been posted yet, or if it's known, and I neglected to record it last night (because I wasn't thinking about t at the time), but I found a bug while playing Gnar that, had I been against the Gnar, I would have been pretty annoyed.

At Max rage, to transform and engage a fight on an enemy (Malphite was who I was laning against), I normally use Wallop for a quick stun if they're in rage. Such was the case last night. However, I found that about 4/5 times that I did this, the animation where Gnar rears up and smashes his fist down wouldn't happen, and instead, the minions I hit and the Malphite that I hit were tagged with an animation akin to Nidalee's swipe ability. It didn't happen when Malphite was near me. Maybe it has to do with Malphite's Q hitting me just before I transform? It's the only thing I can think of, with, for whatever reason, Wallop thinking Seismic Shard is a stun and not doing the animation? Not a developer, so I'm not sure.

Can anyone else confirm this? Or am I just going crazy? Heck. Maybe it was lag. Just thought it may be worth looking into - I'll see if I can't duplicate it tonight when I get home.