# Lowercase gamma in mhchem environment with fontspec [closed]

I'm trying to use \gamma inside the mhchem environment, and it refuses to render the correct glyph. Alpha and beta work, as does Uppercase \Gamma. I have tried this with other fonts e.g. Roboto and the same behaviour occurs.

Is this a bug and is there a workaround? MWE:

\documentclass{article}
\usepackage[version=4]{mhchem}
\usepackage{fontspec}
\setmainfont{CMU Bright}
\begin{document}

\ce{\alpha}
\ce{\gamma}
$\alpha$
$\gamma$

\end{document}


The output is the following:

using LuaLatex. With XeTex, a crossed box appears.

EDIT:

FINAL EDIT: Shamefully, updating to the newest mactex distribution fixed the problem. Thanks all for your help.

• This is what I get: click here for picture – egreg Jul 14 '17 at 15:54
• Show the log-file. At best from lualatex. – Ulrike Fischer Jul 14 '17 at 16:30
• Show the complete log-file. The interesting parts are not in the snippet. – Ulrike Fischer Jul 14 '17 at 16:56
• Does \printchemgreekalphabetshow the complete alphabet? – mhchem Jul 15 '17 at 5:43
• I'm voting to close this question as off-topic because the issue was solved by updating software – egreg Jul 16 '17 at 19:46