Using LuaLaTeX and MinionPro (the one from Adobe Reader), I apparently cannot print the characters ϱ and ɔ ("symbolic rho" and "open o"). This I find a bit strange in a professional font. Can that really be true?
If you want a MWE so badly, here it is:
\documentclass{memoir}
\usepackage{fontspec}
\setmainfont[Ligatures={Common}]{Minion Pro}
\begin{document}
Hellɔ woϱld.
\end{document}
I know I can do something like
\usepackage{newunicodechar}
\newunicodechar{ɔ}{\rotatebox[origin=c]{180}{c}}
\newunicodechar{ϱ}{ρ}
but is that really the way to do it? I especially don't like the first one. And the second one changes from one version of rho to another, which I would have liked to avoid.


articleclass and no font options). I do not have this font. Please try\symbol{"03F1}\symbol{"0254}. If there is nothing appearing, I would say, those symbols are not in Minion Pro. – LaRiFaRi Jan 23 '15 at 08:30