This is a minor issue.
The replacement of LaTeX class options by
#+LATEX_CLASS_OPTIONS: [ngerman]
doesn't work if the documentclass definition in org-latex-classes
consists of more than one line.
I used such a definition in my Koma-script letters:
\documentclass[%
fontsize=11pt,%
strey_consult,%
c4envelope, % optional
]{scrlttr2}
For such a definition the replacement doesn't work.
If I reduce the LaTeX expression to one line, everything is fine.
I tracked down the issue to the regular expression in
(if class-options
(replace-regexp-in-string
"^[ \t]*\\\\documentclass\\(\\[.*?\\]\\)"
class-options header t nil 1)
header)
Here I gave up for today.
Regards
--
Michael Strey
www.strey.biz