[OS X TeX] LaTeX won't format emph

[Michael Sharpe]

> On Feb 1, 2015, at 11:13 AM, Alain Schremmer <schremmer.alain at gmail.com> wrote:
> 
> 
> On Feb 1, 2015, at 1:42 PM, Herbert Schulz wrote:
> 
>> 
>>> On Feb 1, 2015, at 12:23 PM, Alain Schremmer <schremmer.alain at gmail.com> wrote:
>>> 
>>> This morning, LaTeX just ceased to format \emph (and, occasionally, section titles) until 2nd typeset. Even after that, if I close TeXShop and re-open the tex file, the pdf is e.g.
>>> 
>>> <LaTeXsample1.pdf>
>>> 
>>> 
>>> So far, \emph worked in sserif and \textbf in both roman and sserif but now sserif does not work either:
>>> 
>>> <LaTeXsample2.pdf>
>>> 
>>> 
>>> I am beginning to get worried. It happened a couple of times a few years ago but I have forgotten what it was due to---and what to do.
>>> 
>>> It may have to do with my starting to use of \colorbox{yellow}{blah} (but I have used it a lot before without any problem.)
>>> 
>>> All log is saying is "LaTeX Font Warning: Some font shapes were not available, defaults substituted."
>>> 
>>> I am running TeXLive-2013 with TeXShop 2.47 under 10.5.8 on a Dual 1GHz PowerPC G4
>>> 
>>> 
>>> 
>>> Hopeful regards
>>> --schremmer
>> 
>> Howdy,
>> 
>> What font are you using?
> 
> Whatever comes with the vanilla TeXLive-2013 distribution: lmodern,
> 
>> Could you supply a minimal working example for us to see?
> 
> I tried one from scratch but it works! My preamble is terribly complicated, at least for me. So cutting it down progressively would be enormously time-consuming. If I really have to, I will of course. As I said, it already happened a long time ago, and I was just hoping that this would ring a bell.
> 
>> What does the faulty pdf look like when opened up in Preview
> 
> Preview is what I used for the two attached pdf.
> 
>> and Adobe Reader?
> 
> I banned Adobe from my computer a very long time ago.
> 
>> Could you include a faulty pdf?
> 
> Do you mean that <LaTeXsample1.pdf> and <LaTeXsample2.pdf> did not work?
> 

Look again at your console window for lines that look like

LaTeX Font Warning: Font shape `T1/scab/m/it' undefined
(Font)              using `T1/cmr/m/n' instead on input line 29.

Those will tell us what LaTeX was looking for but failing to find, giving us a bigger hint. 

Michael