https://bugs.winehq.org/show_bug.cgi?id=51543
--- Comment #1 from Zebediah Figura z.figura12@gmail.com --- Well, probably the issue is that Battlefield 4 actually *didn't* quit, i.e. even though it closed all its windows, the process is still running. You can probably test this with `ps aux | fgrep -i .exe`.
Does this bug occur with upstream (non-staging) wine?