I have a small file
\documentclass{book}
\usepackage{xcolor}
\usepackage{pdfcomment}
\begin{document}
The \pdfmarkupcomment[markup=Highlight,color=yellow]{yellow mark}{Highlight}.
\backmatter
\end{document}
that it is supposed to show the yellow highlight on the third run of LaTeX (pdf-, xe- or lua-), but it never does, no matter how many times it is run.
If you go there and comment the line:
%\backmatter
It does, properly, display the highlight after the third run.
What could possibly be the conflict between the command \backmatter and the pdfcomment package? Any ways to avoid it?
Obs. 1: There is a message to the effect that soulutf8 is an obsolete package and recommending to load the soul package directly. Loading it earlier, does get rid of the message, but the behaviour is exactly the same.
Obs.2: If you want to repeate the sequence (of 6 runs) to exhibit the problem, you have to uncomment the line in the file as well as remove the file *.upb that, if left over will keep showing the highlight.
