https://bugs.winehq.org/show_bug.cgi?id=50110
--- Comment #6 from Paul Gofman pgofman@codeweavers.com --- Thanks. I finally could reproduce the crash, the culprit was how I run EDLaunch.exe. It is a pure .Net assembly and I can reproduce the crash when running that as 64 bit with wine64.
The blamed commit is not at fault, there is out of bound access in mshtml which just didn't cause access violation previously by chance.
I sent a possible fix: https://source.winehq.org/patches/data/195803