imgur.com/a/KurIYNmGame in question:
Using whatever the newest version of Firefox is.
I don't think that's a bug, "learn from your mistakes" mistakes are different from computer analysis mistakes (that's a lot of mistakes). Read "How does it work?" on:
lichess.org/blog/WFvLpiQAACMA8e9D/learn-from-your-mistakesI agree but I can live with it considering it was an 82 move game.