As far as I know, Anivia's ult is a special kind of channel thus any CC which can interrupt channel should be able to cancel Anivia's ult as well.
But taunts (
's E, 
's E, 
's E, even 
's R)cannot cancel Anivia's ult.
Are those intended?
Edit: Well, I can upload only 3 files. I'd like to upload Rammus's screenshot but I can't. The result is same as the other champions.
Her ult is a toggle, meaning that when it's on its on and when its off its off. If anything interrupts it they specially coded the interaction as her kit allows for her to place it and leave it. That said it automatically stops when she gets out of range, so if she gets taunted or charmed and pulled out of her range it will stop. Thinking along the lines of Blitz, Alistar, or Skarner.
He already confirmed that's intended this week. You know there's a search feature and a Riot tracker?
Meanwhile, Wukong's ult is completely uninterruptible by literally anything, including suppression.
