This sign flies by every single time someone joins the battle. Happens in every Rio map it seems.
It is currently a bit behind the red base on the beach, you can see it in the air.
Please specify on which graphic settings you are running the game and does the bug still exist?
Yes, it still exists. Playing on the HIGH graphics setting, but it occurs on every other graphics setting as well.
I can confirm that I am seeing this problem. I run the game at medium settings. There's actually three signs that do this in Rio.
Seems to be fixed now.
Customer support service by UserEcho