Rammus Animation Glitch ( Gameplay )

I have been able to re-create this bug multiple times on and I have discovered that occasionally Rammus will get stuck in his ( W ) animation for the rest of the game once this glitch occurs, and I believe it has to do with casting your ( W ) during or right before your ( Q ) ends. Sadly, I don't have an in-depth way to produce the bug since I encountered this in-game during URF on live, and have discovered it along the patches as I played Rammus so I thought I should say something since I haven't seen this bug discovered, or fixed.