http://bugs.winehq.org/show_bug.cgi?id=58358
--- Comment #2 from Chris Cooksey ccooksey@mindspring.com --- The bug seems to have been introduced in a library called wined3d.dll. If I drop the version from 10.0 into 10.0_2, everything works. I think that might make this a Wine problem again. It doesn't matter what version of MoltenVK I use.
I am going to try to isolate whatever changes could have happened in the short window between Wine 10.0 and Wine 10.0_2 (probably Wine 10.0_1 even, but I haven't tested the fix there).