[GAMEPLAY] Redemption active damage goes through hourglass on Fizz

EDIT: It does not look like a Redemption specific issue, more like an hourglass and Fizz's E issue.

Here are a couple screen shots of the hourglass being fully activated and then losing its invulnerability once Fizz lands back on the ground in his E(while still in the hourglass' active) http://imgur.com/a/JlStQ

Zhonya's was used while the Fizz was mid E and the Redemption's active damage still went through.

I have not been able to recreate this in a custom game.