On 2014-11-02 at 22:48, John Kitchin wrote:
> Nicolas Goaziou <mail@nicolasgoaziou.fr> writes:
>
> Interestingly, this:
>
> #+LATEX_HEADER: \usepackage{chemfig}
>
>
> $\chemfig{A-B-[1]C-[3]-D-[7]E-[6]F}$
>
>
> exports to pdf correctly, but the latex preview is not correct. All the
> letters are jumbled on top of each other.

Ok, I tested again, and found that actually any preview (even without
chemfig) completely stops working when I add
« #+LATEX_HEADER:\usepackage{chemfig} », even pure maths. I just get
little shrinked transparent void rectangles.

I’m on Debian Testing (Jessy) and hence use Org version 7.9.3f (GNU
Emacs 24.3).