[GAMEPLAY] Rengar bug (Which is not tried to solve for months)

Firstly, I am an OTP Rengar main

As you guys know, Rengar (used to)have a SFX when he reaches to the max ferocity like this but it does not happens 10/10 of time for no reason.

it affects the gameplay because we are focusing on something else(i mean the HOT Teamfights) and sometimes we dont really notice if our ferocity is full or not.

Now, the community might blame me like "Oooh you cant even control your champion's ferocity".

I want to say them this: -Sometimes you cant even look at your healthbar in a massive-hot teamfights, right?

Please riot, show some love to mine,our,your rengar. Show some love to US. Please, i beg.

Lovely & Kindest Regards.