Fizz E bug [GAMEPLAY]

Fizz's E is supposed to be making him untargetable from the time the skill starts until the time that you slam back onto the ground, in this gif I am being hit by Cho Gath's Feral Scream after I have already activated my ability. This happened many times over the course of this game and can be easily achieved with many skill shots/AoE skills with good timing and can happen during the frames that Fizz is hopping onto and coming down from his trident. I can't believe this is an intentional change as it was fixed in previous patches and labled as a bug and there haven't been any patch notes stating that they made it an intended feature of the skill.