https://bugs.winehq.org/show_bug.cgi?id=56782
--- Comment #2 from Patrick Hibbs hibbsncc1701@gmail.com --- (In reply to Austin English from comment #1)
Does `winetricks -q d3dx9` help?
Yep. In fact it fixes not only this bug, and the movie playback bug I forgot to report, but #56783 as well.
I'll see about making an AppDB entry for this game with that workaround.