http://bugs.winehq.org/show_bug.cgi?id=58724
--- Comment #3 from i.Dark_Templar idarktemplar@mail.ru --- Created attachment 79346 --> http://bugs.winehq.org/attachment.cgi?id=79346 hots.log.bz2
compressed output of 'WINEDEBUG=+d3dx wine-vanilla-10.15 "Battle.net Launcher.exe"' with launch of Heroes of the Storm.
It looks like after successful call to D3DX11GetImageInfoFromMemory it tries to call D3DX11CreateTextureFromMemory and fails.
With earlier version of wine, 10.0, it calls D3DX11GetImageInfoFromMemory, gets error and I assume uses something else instead of D3DX11CreateTextureFromMemory.