Infinite "ball of death" in mate in four position

[snicolet]

Hi Daylen,

I had an infinite "ball of death" in the new version of Stockfish app with SF9 (version 2.1.2 (24)).

I was analyzing a game, browsing some new variation and saw that it was "Mate in 4". Then I switched on something else on my Mac, and when I came back to Stockfish app an hour later it was stuck in an infinite loop with a rolling "beach ball of death" cursor.

==> The only way out was to force-quit the app

Hope this helps, Stéphane

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Three attached files: • screenshot of the app with the displayed position • preferences that I use • PGN file I add opened at that moment

results.pgn.zip