Two examples:
en.lichess.org/forum/general-chess-discussion/endgame-puzzle-black-to-move-and-draw#1
en.lichess.org/forum/game-analysis/interesting-mate-pattern#1
Tested in latest Chrome and Edge.
Picture of the bug: http://i.imgur.com/TCGY12z.png?1
en.lichess.org/forum/general-chess-discussion/endgame-puzzle-black-to-move-and-draw#1
en.lichess.org/forum/game-analysis/interesting-mate-pattern#1
Tested in latest Chrome and Edge.
Picture of the bug: http://i.imgur.com/TCGY12z.png?1