[Gameplay] When Anivia uses Frostbite on Vayne who Tumbles invis it cancels Frostbite

On Anivia, against a Vayne, Anivia's E will cancel if Vayne tumbles invisible and have its cooldown reset to 0 (ready). Dealing no damage and vanishing.

1. Vayne activate ultimate
2. Anivia activate E on Vayne (possibly ult her first as I always did this as the combo)
3. Vayne tumble invisible

This happened many times in my recent game.
Watch as Anivia your E travel, your E cooldown, and the vayne hp. Watch as vayne your hp and the Anivia E. Also possibly try true sight for Anivia.

This would be a bug as usually the enemy still gets hit when going invis as the ability is targetted. There was also the recent missile change that could have affected this?

I will try to test this in a custom soon and possibly create a video showing it. Here is the replay.gg link

Ill update this when I can, but I am busy the next few days.