https://bugs.winehq.org/show_bug.cgi?id=43763
--- Comment #10 from 9xzsnuwq9h@snkmail.com --- Yes, you were right (obviously). Even with the Gog Version, this can be reproduced by changing he in game screen resolution from 1048 to 1600 for me. Thought I checked this extensively, but I might have missed a relevant combination.
So, not a showstopper, but I'd like to keep this open until I looked into possible workarounds.