Have you tried this with an emacs -q? Your examples work as expected in
emacs -q for me.

John

-----------------------------------
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu



On Thu, Nov 29, 2018 at 11:58 AM Uwe Brauer <oub@mat.ucm.es> wrote:

> >>> "Berry," == Berry, Charles <ccberry@ucsd.edu> writes:
>
>    > I cannot reproduce your export issue with org 9.1.14.
>    > You need to provide more details.
>
> Ok, I searched already my custom settings.
>    > Perhaps you have a header-arg set that you have not told us about?
>
>    > What does C-c C-v C-i report when point is in each of your source
> blocks? I get
>
>    > Lang: matlab
>    > Properties:
>    >    :header-args    nil
>    >    :header-args:matlab     nil
>    > Header Arguments:
>    >    :cache          no
>    >    :exports        code
>    >    :hlines         no
>    >    :noweb          no
>    >    :padline        no
>    >    :results        none
>    >    :session        none
>    >    :tangle         test.m
>
>
> Her is my output
>
> The only difference I can find is the results/replace entry.
>
> Not sure what to do.
>
>
> Lang: matlab
> Properties:
>         :header-args    nil
>         :header-args:matlab     nil
> Header Arguments:
>         :cache          no
>         :exports        code
>         :hlines         no
>         :noweb          no
>         :padline        no
>         :results        replace
>         :session        none
>         :tangle         test.m
>