(GAMEPLAY) Aurelion Sol Stars

I was spectating my friends' game earlier, and after a while I noticed that the enemy Aurelion Sol's stars weren't appearing. I could see the ring, but the balls that were the stars weren't there. I restarted spectator mode and they came back, but when he left base they disappeared. They came back when he backed but and they stayed even after he left base until he walked into the bush between mid lane and the red side red buff. It might be that they disappear when he walks near walls, since both times they disappeared he was near a wall, but that's the only thing I can think of. He never got to the blue base, and while in his own base they were fine. I don't know if this is a spectator only bug, but my friends in-game said they could see them fine.