https://bugs.winehq.org/show_bug.cgi?id=39985
--- Comment #3 from evilny0 evilny0@moomoocamp.net --- Issue lies with qwindows.dll. It's the same file in both folders (compared with md5sum), but when I change it, it just works.
The only difference I can see is the date. The working one is from december 2015, the other one is from yesterday.