https://bugs.winehq.org/show_bug.cgi?id=39776
Bug ID: 39776 Summary: wine interact badly with window manager on modal dialogs Product: Wine Version: 1.7.55 Hardware: x86-64 OS: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: winex11.drv Assignee: wine-bugs@winehq.org Reporter: galtgendo@o2.pl Distribution: ---
This might be be a dupe of bug 37052.
I've seen many times with various apps a case where a modal dialog has been opened *under* the window it's supposed to be transient for and (sometimes) not getting raised by Alt-Tab.
This effectively forces the user to kill the app.
One outstanding example is Space Empires 4, which due to its design triggers this bug on most of user interactions.