https://bugs.winehq.org/show_bug.cgi?id=40801
--- Comment #14 from Paul Gofman gofmanp@gmail.com --- Indeed, Comment #2 suggests that previously game crashed with GLSL also and required indexed vertex blending support (as the corresponding patch fixed it.
So it seems to me correct resolution may be ABANDONED (as unless I missed something obvious this is not reproducible in the latest game anymore and the old client probably cannot be tested), or a DUPLICATE of bug #39057. Why would it be WONTFIX? It is also unlikely FIXED, as nothing changed in upstream Wine in regards to indexed vertex blending.