[Bug 39985] New: Battle.net fails to start with an error dialog pointing to Qt with wine staging, but not with regular wine

https://bugs.winehq.org/show_bug.cgi?id=39985

Bug ID: 39985
           Summary: Battle.net fails to start with an error dialog
                    pointing to Qt with wine staging, but not with regular
                    wine
           Product: Wine
           Version: 1.9.1
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

When starting Battle.net with wine-staging 1.9.1, the program fails to start
with an error dialog with the following text:

"This application failed to start because it could not find or load the Qt
platform plugin "windows".

Reinstalling the application may fix this problem."

If you then switch to regular wine 1.9.1, the program starts as expected
without the error dialog.

I'm running Arch, and I've installed Battle.net into a 32-bit prefix with the
environment variable WINEARCH=win32

You can download Battle.net from here:
http://www.battle.net/download/getInstallerForGame?os=win&locale=enUS&am...