Figure disappears if a new page is added before it

Question

In the experimental section of my Master's thesis in chemistry, I'm using chemnum to numbering chemical coumpounds. The problem is that the figures disappears when adding a \newpage in front; see below for an example (in Norwegian).

So, if this is the start of the first experiment in the experimental section and I want a short introduction on the page before, then the figure disappears and only shows the text. I write every part of the thesis in different sections and I use the \include command, and the same thing happends when I include some other file in front. What am I doing wrong?

\include{preamble_mastergrad}

\begin{document}
\cmpdreset

\section*{Syntese av: 1,6-dihydroksiphenazin.}

\initcmpd{dihydphen}
\begin{figure}[ht]\label{figur: dihydroksiphenazin.}
\centering
\scriptsize
\cmpdref[TMP1]{dihydphen}
\includegraphics[scale=1]{SYNTESER/27/27.eps}
\caption{1,6-dihydroksiphenazin.}
\end{figure}
\paragraph*{Utbytte:}  Mangler

\paragraph{R\scriptsize{f}\normalsize{:}} mangler

\paragraph*{\HNMR} (600 MHz, Diklormetan-$d2$) \\ 
8.20 (s, 2H), 7.82 – 7.77 (m, 4H), 7.26 (dd, J = 5.7, 2.8 Hz, 2H).

\paragraph*{\CNMR} (151 MHz, Diklormetan-$d2$) \\ 
152.42, 142.13, 135.98, 132.39, 119.92, 109.72, 54.00.

\paragraph*{MS (EI) $m/z$ (relativ intensitet):} 213 (8), 212 (M$^+$ 100), 184 (33), 155 (8).

\paragraph*{HR-MS (EI):} 212.0588. Kalkulert for \BPChem{C\_{12}H\_8N\_2O\_2}: 212.0586 (-0.9ppm).

\paragraph*{Smeltepunkt:}  Mangler

\paragraph*{Prosedyre:} \mbox{} \\
Bla bla bla

I have a mac from 2010, this worked really fine with texmaker 4.2 and mactex before I upgraded to Mavericks and neweste versions of both mactex and texmaker.

Ben

Answer 1

The line

 \include{preamble_mastergrad}

is incorrect, \include should only be used after \begin{document} and is intended for document fragments (usually chapters) not for macro code files.

If you have put your preamble commands into a separate .tex file you can input them with \input, although a preferable alternative is to put them in a .sty file and use \usepackage.

\documentclass[twoside]{book}
\usepackage{mypreamble}
\begin{document}
....

where mypreamble.sty contains all the lines of your preamble_mastergrad.tex except the first, \documentclass, line.