as seen here: lichess.org/broadcast/2019-grand-chess-tourn-cote-divoire-blitz-rd-18/4SHIY0EB
game between Topalov and Wei
Just refresh your page, It's a visual bug.
This is very likely related to the way that game results are indicated on DGT (Digital Game Technology) boards: http://www.digitalgametechnology.com/index.php/support1/frequently-asked-questions/361-boards/general/162-how-is-the-result-of-a-game-indicated-on-a-dgt-e-board
Quoting the most relevant parts:
"For a correct detection of the game end status you must place the Kings on two of the center squares (d4, d5, e4,e5)."
"Both Kings on a dark square (d4, e5): 0 - 1"
"Both Kings on a white square (d5, e4) 1 - 0"
"One King on a light square, the other on a dark square:1/2 - 1/2, Draw."
You can't post in the forums yet. Play some games!