Thanks Rasmus. After some exploration I realised that I can't have empty
lines or comment lines (by #) between :PROPERTIES: and :END: - I used to
have blocks of :EXPORT_ for different things. Once I remove those I get the
right export as before. This is fixed for me now.

Thanks,
Zhihao

On 29 September 2015 at 21:54, Rasmus <rasmus@gmx.us> wrote:

> Hi Zhihao,
>
> Zhihao Ding <zhihao.ding@gmail.com> writes:
>
> > Dear Org experts,
> >
> > I am having some problems with exporting in org 8.3.1. I've been using
> > :PROPERTIES to control export of a heading, e.g.
> >
> > :PROPERTIES:
> > :EXPORT_LaTeX_HEADER+: \usepackage{array}
> > :EXPORT_LaTeX_HEADER+: \usepackage{tikz}
> > :EXPORT_LATEX_HEADER+: \usepackage{geometry}
> > :EXPORT_TITLE: title
> > :EXPORT_FILE_NAME: file.pdf
> > :END:
> >
> > However I realised that they are not correctly recognised in the latex
> > output. Any advice?
>
>
> Could you be more specific about what is wrong? In a quick test I got the
> requested packages and title.
>
> Could you try 8.3.2 or master to see if the problem persists.
>
> Thanks,
> Rasmus
>
> --
> ツ
>
>
>


-- 
Regards,
Zhihao Ding