https://bugs.winehq.org/show_bug.cgi?id=36216
--- Comment #52 from Frédéric Delanoy frederic.delanoy@gmail.com --- (In reply to Jerome Leclanche from comment #51)
I'm using a patched wine version to play the game. But there was a major game update a couple of days ago, it's likely it was fixed by that.
I'd say keep the bug open until the patch lands.
Problem is, you can't test whether the proposed patch fixes the bug (since *this* bug doesn't appear anymore due to changes in the Hearthstone), so you wouldn't also be able to test later for regression testing.
It would probably be better to close this bug, and create a new bug report with a simpler app showing the issue, so we can test if the proposed fix works.
Erich E. Hoover would probably be most "appropriate" for this since he found the fix and wrote a patch.