Wrong evaluation

This screenshot shows a wrong evaluation: imgur.com/a/dhakhOH

Kc5 is evaluated as mate in 6 for black, which it isn't, since Rc1+ wins the queen and it then takes black a while to win.

I reached this position in analyzing this game: lichess.org/6JUmebeQ/

When I reproduce the position in the board editor, the best move is correctly shown to be Kc4, with mate in 7 for black.

What sequence of moves do I play to get the position in your screenshot?

"Rc1+ wins the queen" I'm sorry, I don't follow?

@Toadofsky : 59. Rb8+ is highlighted in the right-hand sidebar with the variations; that's the last move. So you need to play the game up to 36. Kd2 and then the variation leading up to that move: The lines that start with "36... e4", "38. Ra7" and "57. Ka2".

@NoobBatter : If black plays Kc5 as suggested, then white plays Rc1+, skewering the king against the queen; the king has to move out of the way, and the rook can take the queen. The rook will be taken in turn, and it's still a win for black, but not nearly mate in 6, since the white king can get to the pawn before it promotes, so the black king has to go there too to help it promote.

Do you mean 30. Rc1+ ?

@joriki Thanks, I see a comment with your study URL but I get a 404 attempting to view the study

@Toadofsky : I tried to create a study including those variations, but it turned out to contain only the game itself, so I deleted it right away. Perhaps I did something wrong -- if it's possible to save variations, do let me know how so I can "preserve the evidence" next time.

@NoobBatter : No -- looks like you're talking about the game -- I'm talking about the variation in the screenshot I linked to, at move 59.

OK, I'll attempt to stream duplicating this issue hopefully today or this weekend (whatever my availability ends up being) since finding bugs is fun (fixing them, not so much).