My friend group were playing the new update (very fun) the other night and we recorded the green screen/black sun issue firsthand. Here is the link to our VOD - It appears at around 2 hours 2 mins. It was fixed be rejoining and appeared at the edge of the map.
www.twitch.tv/videos/25386...

Holy shit this is phenomenal! Viktor's change throughout arcane season 2 is incredible and this beautiful piece showcases a fantastic take on him, beautiful #arcane #viktor #riotgames