Shyvana's ult still not immune to CC

I just had a game and my ultimate was not immune to CC at all. I was hit by the 's snare passive or taunt and other CC in that game and was hit by it in the middle of my dash and it waited until I landed and then CC'd me. Which is what it was last patch anyways. It's not like where they are fully immune to CC and won't get hit by it after the ult ends.