# Libertine package options with boldface and emphasis change numeric text

I've just installed and updated MacTeX and am recompiling files for the university courses I'm teaching this year.

I'm experiencing a really peculiar problem with numeric information when I set certain options on the Libertine package and combine that with bold face with emphasis.

\documentclass{article}
\usepackage[oldstyle,sb]{libertine}

\begin{document}
1,048,576 vs.\ \emph{\textbf{1,048,576}}
\end{document}


Here's the output:

If I get rid of either option on the libertine package, the problem goes away. It makes no difference, by the way, whether \emph{} is imbedded in \textbf{} or the other way around, for what it's worth.

Any idea what is going on?

I don't think I had this problem last year, but I don't have access to the older system at the moment though I can check this later if need be.

• eek that's not good! I get the same here... (same in tl 2017 and 2016) – David Carlisle Aug 31 '18 at 16:12
• You didn't happen to scan those number with a Xerox photocopier (dkriesel.com/en/blog/2013/…), did you? I can reproduce the issue with the libertine package and all three engines. No matter what comes out of this question, you will want to contact the package author about this, he should know about this. – moewe Aug 31 '18 at 16:15
• No, I didn't scan it! Wish I could cop to this :) Sent a message to the package maintainer just now. – K.G. Feuerherm Aug 31 '18 at 16:48
• For the otf version of the font there is already a bug report: sourceforge.net/p/linuxlibertine/bugs/331, see also tex.stackexchange.com/questions/372441/… – Ulrike Fischer Aug 31 '18 at 17:59
• @UlrikeFischer Thanks for the reference. I thought I read somewhere earlier today that the OTF version was obsolete... but I don't recall where. Is there a reason to prefer one package over the other? – K.G. Feuerherm Aug 31 '18 at 18:07