[Orgmode] Strange behaviour of produced latex-pdf

[Martin Weigele]

Dear all, have encountered the following strange behaviour in producing latex-
pdf from a standard outline, C-c C-e d . One of many top nodes is seemingly 
arbitrarily not broken down into subnodes. It works fine, however, when 
producing html. Emacs 23.1.1; org-7.4 manually installed; ubuntu 10.04 LTS.

The following declarations are used:

#+TITLE: Blah
#+LaTeX_CLASS: book
#+LATEX_HEADER: \usepackage{a5}\usepackage{german}
#+LANGUAGE: DE
#+TEXT: Blah

While most top nodes are broken down like 
\chapter{blah}
\section{blah}
etc..

...one chapter is simply not broken down. I have checked the org file with vi,
there is no evidence that anything is wrong in the orgfile structure. All go
*chapter
**section
***subsection

etc.

Like others, the unrefined chapter contains only (sub)headlines, no text yet. 
Any ideas?