Kai'sa QWE upgrades = white rectangles on screen
minion block seizure dance
minion block seizure dance
I have the same issue. Anytime I upgrade a skill it puts white rectangles on my screen.
Same, and lvl up skill arrows sometimes get stuck too
That goes the same for Viktor and Khazix or any champ with spell upgrade.
I've seen it on kaisa and k6 bu viktor didn't have it last time i played him.
I have encountered the same issue. Hopefully this is a problem that can be resolved.