https://bugs.winehq.org/show_bug.cgi?id=46148
--- Comment #13 from Henri Verbeet hverbeet@gmail.com --- (In reply to Anthony Jagers from comment #12)
I'll just chime in with problem that I have been having with release 3.20. The steam client is currently borked with 3.20. I get steams login dialog box. After typing in my password, nothing appears. The wine server just quits as well. I took the liberty to bisect and came up with a commit. That commit only modifies dlls/wined3d/surface.c. This seems related to problem with WoW. I'm thinking about creating a separate bug report. But, I'll have to think about gathering some log output. I already tried +wined3d and didn't get any meaningful output.
commit c130a028fcf61b57a63ded6ce0cdbed47df1e5bb (HEAD) Author: Henri Verbeet hverbeet@codeweavers.com Date: Mon Oct 29 10:47:07 2018 +0330
wined3d: Don't bother trying to blit from discarded textures.
If you simply remove the "return WINED3D_OK;" line introduced by that commit, does that help?