well, i guess you can test it, by placing some human portraits in the default directory and starting a new game as a test. if the slaves in aliron have portraits, then it's that.
I had thought I fixed this bug in the first week I released the mod, but I guess it must have slipped my mind. Uploaded the fix, test and let me know if you encounter any issues. I don't actually use different user locations so I probably wont test this functionality normally.