I'm sure you've already found this, but the fix for "broken" Hybrid or Mixed characters is pretty simple. In case you haven't or if anyone (like me) can't wait for the next update, all you have to do is go to your "files\scripts\person\person.gd" file and change line 1654 from
rvar = ' (' || race_display || ')'
to
rvar = ' (' + race_display + ')'
Cheers, appreciate your work!