https://bugs.winehq.org/show_bug.cgi?id=52339
--- Comment #8 from RolandD contact+winehq@rolandd.com --- Ah, I understand what you mean so I did some more testing as well and you are right. As long as I do not click on the x in the top right corner all keeps working now. As soon as I click the x in the top right corner, nothing responds anymore. Can you reproduce that?
There are also the buttons at the bottom for tiled views, I never use them, but when I click them, the program dies. You could say that is one way of closing the program :) Does that happen with you?