https://bugs.winehq.org/show_bug.cgi?id=43188
--- Comment #8 from Matteo Bruni matteo.mystral@gmail.com --- (In reply to ph.schaefe from comment #7)
Excuse me, but how come my configuration is unsupported?
Well, you installed native comctl32 v5 in your Wine prefix (e.g. with winetricks) and that broke the file open dialog. Issues caused by the use of native DLLs are generally not valid.