https://bugs.winehq.org/show_bug.cgi?id=44954
--- Comment #9 from Matthew matthew@digivation.net --- I noticed that the is_resource_dll() function does not exist in vanilla wine, and is introduced in the ntdll-Loader_Machine_Type patchset. I disabled that patch and it's dependent patches (./patches/patchinstall.sh DESTDIR=../wine-patch2 --all -W ntdll-Loader_Machine_Type -W ntdll-DllRedirects -W uxtheme-GTK_Theming -W ntdll-Purist_Mode) and rebuilt my wine-staging test.
The build without these patches successfully loaded the executable and 32bit resource dll files.
This leads me to believe that the ntdll-Loader_Machine_Type patchset causes the regression.