I'm trying to use the advancedshiftedpstarts option of reledpar for typesetting a parallel bilingual edition of a dramatic text with the thalie package; the left page is a prose version, the right are verse lines. I'd like to avoid white spaces between paragraphs with the advancedshiftedpstarts option; unfortunately it mangles the output of text lines and also upsets the counting of lines on the right page (the last line displayed on the right page should be line 5):
\documentclass [12pt, a4paper, pagesize] {scrbook}
\usepackage [UKenglish, german] {babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{microtype}
\usepackage{libertine}
\usepackage{blindtext}
\usepackage[characterstyle=imprimerie-prose]{thalie}
\usepackage{reledmac}
\usepackage[advancedshiftedpstarts]{reledpar}
%%\usepackage{reledpar}
\usepackage{hanging}
%% adjusting hanging for each spoken bit and adjusting correct length of second part of a broken verse
%% see: https://tex.stackexchange.com/questions/545307/thalie-split-verses-adjusting-vertical-alignment
\newlength{\brokenverse}
\renewcommand*{\speakswithoutdirection}[1]{%
\settowidth{\brokenverse}{\textsc{#1}.}%
\hangpara{2\parindent}{1}\noindent\textsc{#1}.%
}
\makeatletter
\renewcommand{\resumeverse}{%
\hspace{\@verseadjust}\hspace{\dimexpr\dimen\@ne-\brokenverse-2em}
}
\makeatother
\linenummargin{right}
%%line numbers for broken half lines on last bit of line
\lockdisp{last}
%%line numbers on right pages without R flag
\setRlineflag{}
%%suppress line numbers on left pages
\firstlinenum{10000000}
\begin{document}
\begin{dramatis}[hidden]
\character[cmd={Buckingham}]{Buckingham}
\character[cmd={Norfolk}]{Norfolk}
\end{dramatis}
\begin{pages}
\begin{Leftside}
\beginnumbering
\pstart\Buckingham \blindtext\pend
\pstart\Norfolk \blindtext\pend
\pstart\Buckingham \blindtext\pend
\endnumbering
\end{Leftside}
\begin{Rightside}
\beginnumbering
\selectlanguage{UKenglish}
\pstart\Buckingham Good morrow and well met. How have ye done\\Since last we saw in France?\pauseverse\startlock\pend
\pstart\Norfolk\resumeverse\endlock I thank your grace,\\Healthful, and ever since a fresh admirer\\Of what I saw there.\pauseverse\startlock\pend
\pstart\Buckingham\resumeverse\endlock An untimely ague\\Stayed me a prisoner in my chamber when\pend
\endnumbering
\end{Rightside}
\end{pages}
\Pages
\end{document}
Without the advancedshiftedpstarts option all lines look ok, and the displayed line numbering is correct:
What am I missing about advancedshiftedpstarts?
Many thanks for your help.
