https://bugs.winehq.org/show_bug.cgi?id=52593
--- Comment #2 from Zoë Sparks zoe@milky.flowers --- I just tried this with a freshly-built vanilla wine-7.20-145-g9d1175a4649, a fresh 32-bit prefix, and a fresh installation of the RMMV demo. It still crashes when you try to start a new project or open an existing project. However, the stack trace looks a bit different; it still points to a location in qt5webenginecore, but not the same one as last time. Given that the behavior is identical it may be the same issue at heart, though (again I wish I could just snap my fingers and effortlessly drop in a debug Windows build of the right version of QT5 here). I've attached the crash report for reference (backtrace_rpgmakermv_qt5webenginecore_11-7-22.txt).