Cho'Gath Feast (R) Bug - Animation Starts But Doesn't Finish, No Stack, Goes on CD [GAMEPLAY]

This bug on Cho'Gath has existed for a while and I wasn't sure if it was widely known. The bug occurs when a Cho'Gath player is attempting to Feast a unit (jungle monster, minion, or champion) and that unit falls out of the player's view while the animation is still going off.

For example, sometimes when I attempt to Feast a scuttle crab and it runs into the river brush that isn't warded, the animation will go off, but no damage will be done to the scuttle crab, and the move will go on cooldown with no stacks given. It has also happened to me in the case where I'll attempt to Feast a Fizz, and he jumps up and becomes un-targetable. The animation will continue, and go on cooldown, with no stacks given and no damage done to Fizz. The cooldown duration is always the full duration (adjusted by CDR of course) when the bug occurs, even when I'm feasting a unit with less health than needed for a stack (i.e. 300 for champions and 1000 for minions/monsters) and should go on the halved duration.

1. Get Feast on Cho'Gath
2. Attempt to Feast a unit that is about to fall out of view/become un-targetable. (It's occurred with both minions and Fizz more than once.)

For me, this bug happens about 1 out of every 10 times I am trying to Feast a unit that falls out of my view, and it occurs when I am trying to Feast different units. This heavily effects the Cho'Gath player's ability to play the game. Imagine hitting level 6 and getting your Feast, and immediately trying to use it to gain a stack. If it fails because the unit drops out of view, that's 80 seconds where the enemy laner has immensely more damage than you can put out, leading to a lost lane/lost game.

Please get on this as soon as you can, and let us know if you can fix this.

~Cho'Graph