# memoir and parallel: too much blank facing pages before \chapter; no valid headings

My test document:

\documentclass{memoir}
\usepackage{lipsum}
\usepackage{parallel}

\begin{document}

\chapter{Single Lipsum}
\lipsum[1-3]

\begin{Parallel}[p]{}{}
\ParallelLText{
\chapter{Left Lipsum}
\lipsum[4-14]
\vfill
}
\ParallelRText{
\chapter{Right Lipsum}
\lipsum[15-25]
\vfill
}
\end{Parallel}

\chapter{Final Lipsum}
\lipsum[46-50]

\pagebreak
\tableofcontents

\end{document}


Here I have two problems:

1. There are two blank facing pages pairs (sorry for my english) before Parallel section.
2. \chapter's in Parallel do not update heading lines: I have "CHAPTER 1: SINGLE LIPSUM" up to "Final Lipsum".

How can I workaround that?

• The same thing happens with the book class so I guess that it is a problem with the parallel' package itself rather than a combination of the memoir class and the parallel package. I have never looked at the parallel package. – Peter Wilson Aug 9 '15 at 17:36

So, for this document I will switch from memoir to article and use \section`'s.