https://bugs.winehq.org/show_bug.cgi?id=49896
--- Comment #7 from David Korth gerbilsoft@gerbilsoft.com --- The wine-mono build is from Gentoo's repositories, which matches this installer:
https://dl.winehq.org/wine/wine-mono/5.1.0/wine-mono-5.1.0-x86.msi
I'll try to figure out why the debugging symbols aren't working properly.