I see

I just rolled back to Source Tools 3.1.1
"report this to Blender" If it's a blender issue, how come it worked on earlier versions of Source Tools?
Just wondering

After upgrading from Source Tools 3.1.1 to 3.2.2, SMD export crashes blender.
DMX seems to works fine.

crash log: https://pastebin.com/raw/wjduAGxj