Thanks Eric, Colin.
Please see my further questions below.
>>>>> Eric S Fraga <address@hidden> writes:
> Your example works fine for me but I am using a slightly old
> version of org so maybe something has changed?
> -- Eric S Fraga via Emacs 27.0.50, Org release_9.1.14-1035-gfeb442
I see that you are running Emacs master. Can you also report the git hash used to build it? Also, what is your imagemagick version?
Works fine for me too and I'm using Org mode version 9.2
(release_9.2-152-gc006a6).
Great! So any regression in Org mode 9.2 is ruled out :)
I need to see what's different in my environment: Emacs version, imagemagick version.
Later today, I'll find out my imagemagick version, and also try running my example on Emacs 26.1.
Thanks all!