https://bugs.winehq.org/show_bug.cgi?id=48214
--- Comment #2 from ilkka.prusi@gmail.com --- Problem still exists with Wine 7.14, KDE 5.25.
Is this a compositor issue instead of Wine issue? Various other programs don't have the same issue with two screens.
Games made with RPG Maker VX ACE have this problem, but games made with newer RPG Maker MV don't have the same problem.