Riot please fix this highlighting bug.

This is preventing me from playing the damn game. I can't CS properly and I can't see people in team fights when clumped up. I will not be playing this game until this is fixed. This has been happening since the last patch and I've tried everything from reinstalling the game to reformatting my whole computer.

PC Specs: Core i7 4770k, Asus Sabertooth Z87 Motherboard, 16GB Kingston Hyperx Blue Ram, MSI Geforce GTX 970, 1.5TB Seagate HDD, 240GB Crucial M500 SSD, Sandisk Ultra 2 240GB SSD.

Seriously, I can't play this game until this is fixed.