Playing Monterey Jack on the MacOS version, won a room (can't remember which one), but winning it cause me to lose my last Sanity.  I saw the "Insane" picture, the vertical doors shut and the game just hung.  Had to Command-Q it. 

I would report this bug using the user support link at bottom of page.

It's similar(may be same) to one I've found where if going insane/dying and losing game at same time the game freezes up after showing the "greyed out" victim.  It seems "killing character" + [unknown # other things] = crash.

 Done. Overall, I am REALLY enjoying this game.  

I've got the same problem: it seems that you cannot sacrify an investigator sanity to solve one adventure due to a bug.

I've posted the problem in the User Support and hope that FFG will solve it soon - not *very* critical but sometimes you need to sacrify one investigator.

Overall, great game, thanks FFG, but please add at least a couple of additional Ancient Ones!!

Zak

 as per rules you cannot 'sacrifice' an investigator. The app should not crash nonetheless, but the bottom line is that you are not allowed to make such an attempt.