https://bugs.winehq.org/show_bug.cgi?id=56800
--- Comment #9 from Esme Povirk madewokherd@gmail.com --- Created attachment 76623 --> https://bugs.winehq.org/attachment.cgi?id=76623 possible fix
I found an error in the stride calculation used for image drawing which could have a similar effect.
Can you check whether this patch fixes it?