Skarner Battlecast passive bug in Replay

When I was watching a replay of my last ranked game using the Alpha Client I have noticed that Battlecast Skarner's passive point always had a zz' rot portal under it. They appear on each of them after 3 minutes into the replay until the end of the game. Not sure if this is a issue for only that one skin or for all Skarner skins. Hope this helps! ( I cannot send screenshots since my computer doesn't let me somehow)