https://bugs.winehq.org/show_bug.cgi?id=35205
--- Comment #3 from Sagawa sagawa.aki+winebugs@gmail.com --- The issue was fixed in DX Library 3.11d. Unfortunately, Wolf RPG Editior 2.20 seems to use DX Library 3.10f. So, it suffers this bug if GPU rendering mode enabled. If available, please retest with upcoming version of Wolf RPG Editor which uses DX Library 3.11d or later.