https://bugs.winehq.org/show_bug.cgi?id=43009
--- Comment #25 from lilydjwg@gmail.com --- (In reply to Dmitry Timoshkov from comment #23)
It should be possible to verify my guess by disabling the shaping of layered windows on winex11.drv side. In order to do that create a key "ShapeLayeredWindows"="N" under "X11 Driver" section in the registry. See https://wiki.winehq.org/Useful_Registry_Keys how to do it, it looks like ShapeLayeredWindows setting is not documented there.
I get strange results.
With this setting, I get a white window that I can't move or close. But I can minimize it, and after I restore the window it behaves normally with all the functionality usable.
I also test the original issue after minimizing and restoring. The unresponsive window is gone after that.