On Monday,  2 Oct 2017 at 11:12, Nick Dokos wrote:

[...]

> FWIW, this is what I get in the *gnuplot* buffer when I C-c C-c on the
> code block:
>
> ,----
> | 
> | 	G N U P L O T
> | 	Version 5.0 patchlevel 3    last modified 2016-02-21 

My gnuplot is patchlevel 7; maybe this makes a difference?  The table
does have gaps in it and maybe gnuplot has improved in how it handles
such data.

For the OP, it may be worth ensuring that all entries in the second
column have data in them...

-- 
: Eric S Fraga via Emacs 27.0.50, Org release_9.1.1-78-gfbf47c