https://bugs.winehq.org/show_bug.cgi?id=49025
--- Comment #12 from aguertin+wine@aguertin.net --- I think this is due to wow64cpu.dll?? My logs are showing that before a55fee removed get_builtin_fullname, get_builtin_fullname only ever had to get a fullname for ntdll and wow64cpu.dll. a55fee set a fullname for ntdll, but didn't make any changes to wow64cpu.dll, so it now gets passed to alloc_module without its fullname?