Updating the org package to the latest version indeed fixed this behavior.
Thank you Nicolas!

On 26 November 2015 at 16:23, Nicolas Goaziou <mail@nicolasgoaziou.fr>
wrote:

> Hello,
>
> "sgeorgii ." <sgeorgii@gmail.com> writes:
>
> > I run  org-agenda and then I do some filtering of the agenda by tags.
> >
> > Then I simply want to print the lines which I now see on the screen.
> >
> > My problem is - I am getting printed _all_ lines of org-agenda,
> > including those I just filtered out and do not see on my screen!
> >
> > My desired outcome is to get printed only those org-agenda lines I see
> > on screen after filtering. Can this be done?
>
> Actually, it was intended to behave this way, but a bug was getting in
> the way. I fixed it. Thank you.
>
>
> Regards,
>
> --
> Nicolas Goaziou
>