[GAMEPLAY] Miss Fortune's ult blocked by Big Wolf

So I have a replay on LSI (Don't know how to attach it here but I will if someone can tell me) and during a fight on red side jungle around blue, I ulted as MF. The big wolf was aggroed at some point and chased someone, then it switched targets to me. It was positioned in front of my ult and while still channeling, each wave started getting blocked by the wolf.

I don't know if this is reproducible, it only happened once for me so far. Will update if I come across it again.