Renektoy In-game bug. [GAMEPLAY]

I just played a ranked game with Renekton with Renektoy skin on enemy team. Whenever my camera was close to him, every unit in the game and my whole hud and map were flashing white (don't know the other way of explaining it) , I took some screenshots but it seems you can't take a photo of it cuz it can be seen only in-game (I mean screenshots were normal unlike the gameplay). First time i see this bug only because it was first time i was in a game that included Renektoy skin. [Sorry for my English and If something's unclear - This is my first post ever].