Players are reporting a map obstruction floating around near the Ivy Tunnel.
While it poses as an obstruction when going up the stairs, players have discovered that they can still come down the steps by rolling off the square.
There’s an alternative route if you can’t take the stairs, so all is not lost. Although some commentors have reported that they ran into the glitch when running away from enemies, which went about as well as you’d imagine, while others have used it to their advantage in combat, as the NPCs can’t get past it either.
If you’re playing The Division 2 and are still grinding away, be sure to check out our fast levelling guide for how to hit level 30 quickly.