https://bugs.winehq.org/show_bug.cgi?id=46733
--- Comment #7 from Lorenzo Ferrillo lorenzofer@live.it --- Argh, I made a mistake.
When adding D3DUSAGE_DYNAMIC, the buffer is mapped the first time, but is never unmapped, failing with an error:
004d:warn:d3d:texture_resource_sub_resource_map Sub-resource is already mapped.