[Bug 47511] New: battle.net client window is now black

https://bugs.winehq.org/show_bug.cgi?id=47511

Bug ID: 47511
           Summary: battle.net client window is now black
           Product: Wine-staging
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
          Assignee: [e-mail]
          Reporter: [e-mail]
                CC: [e-mail], [e-mail]
      Distribution: ---

Created attachment 64900
  --> https://bugs.winehq.org/attachment.cgi?id=64900
terminal output of battle.net launch

Since a few days (I'm not sure exactly since when), after a system "apt-get
update", the battle.net client window is fully blacked out. I can hover some
invisible icons but I can't launch HearthStone anymore (which was working fine
earlier).

The login window pops up normally, then after I enter my user/pw, the
Battle.net client comes up but is full of black.

I'm on wine-staging, latest kubuntu 19.04.

% wine --version
wine-4.12.1 (Staging)

% cat /etc/lsb-release      
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=19.04
DISTRIB_CODENAME=disco
DISTRIB_DESCRIPTION="Ubuntu 19.04"

% uname -a
Linux hehe2 5.0.0-20-generic #21-Ubuntu SMP Mon Jun 24 09:32:09 UTC 2019 x86_64
x86_64 x86_64 GNU/Linux