I am working with a long table placed sideways using the longtable and pdflscape packages.
While I have no trouble with the table formatting while it remains on the first page, it sort of breaks down once it goes on to the second page.
My code is:
\documentclass[a4paper, 11pt, oneside]{article}
\usepackage{longtable}
\usepackage{rotating}
\usepackage{tabularx}
\usepackage{pdflscape}
\usepackage{arydshln}
\newcommand{\Mj}{M_{\bar{J}}}
\newcommand{\Hkj}{H_{\mathcal{K}\bar{J}}}
\newcommand{\Mkj}{M_{\mathcal{K}\bar{J}}}
\newcommand{\Hekj}{\left( \Hkj - \eta_{\mathcal{K} \bar{J}}\right)}
\begin{document}
\begin{landscape}
\begin{center}
\begin{longtable}{|c|c|c|c|c|c|}
%% Headers and footers
\caption{}\label{tab: Glue1 }\\
\hline
\textbf{Terms in} $\bm{\delta D_{\mu}M_{\bar{J}}^{(\Lambda_{1})}}$ & \textbf{Terms in} $\bm{\delta D_{\mu}M_{\bar{J}}^{(\alpha_{3})}}$ & \multicolumn{2}{|c|}{\textbf{in }$\bm{\delta D_{\mu}M_{\bar{J}}}$ \textbf{t.b.t.}} & \multicolumn{2}{|c|}{\textbf{in }$\bm{\delta D_{\mu}M_{\bar{J}}}$ \textbf{a.c.}} \\ \hline
\endfirsthead
\multicolumn{6}{c}%
{{\bfseries \tablename\ \thetable{} -- continued from previous page}} \\
\hline \textbf{Terms in} $\bm{\delta D_{\mu}M_{\bar{J}}^{(\Lambda_{1})}}$ & \textbf{Terms in} $\bm{\delta D_{\mu}M_{\bar{J}}^{(\alpha_{3})}}$ & \multicolumn{2}{|c|}{\textbf{in }$\bm{\delta D_{\mu}M_{\bar{J}}}$ \textbf{t.b.t.}} & \multicolumn{2}{|c|}{\textbf{in }$\bm{\delta D_{\mu}M_{\bar{J}}}$ \textbf{a.c.}} \\ \hline
\endhead
\hline \multicolumn{6}{|r|}{{Continued on next page}} \\ \hline
\endfoot
\hline \hline
\endlastfoot
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% C1 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Bloque 1
\multirow{2}{*}{-} & $i \lambda^{(\alpha_{1})}\partial_{\mu} \Phi^{(\alpha_{2})}_{\bar{J}}$ & \multirow{2}{*}{$i\lambda_{\mathcal{K}} \star \partial_{\mu}\Mj$} & \multirow{2}{*}{\eqref{eq: deltaDmuMjtbt1}} & \multirow{2}{*}{$i\lambda_{\mathcal{K}} \star \partial_{\mu}\Mj$} & \multirow{12}{*}{\eqref{eq: deltaDmuMjac1}} \\
& $-i \lambda^{(\alpha_{2})}\partial_{\mu} \Phi^{(\alpha_{1})}_{\bar{J}}$ & & & & \\ \cline{1-5}
%%%%% Bloque 2
\multirow{4}{*}{-} & $-g \lambda^{(\alpha_{1})}A_{\mu}^{(-\alpha_{1})} \Phi^{(\alpha_{3})}_{\bar{J}}$ & \multirow{2}{*}{$g \partial^{\mathcal{K}}\lambda \star A_{\mu} \star \Mj \, +$} & \multirow{2}{*}{\eqref{eq: deltaDmuMjtbt4}} & \multirow{4}{*}{$-g \lambda \star A_{\mu} \star \Mj$} & \\
& $-g \lambda^{(\alpha_{1})}A_{\mu}^{(-\alpha_{1})} \Phi^{(\alpha_{3})}_{\bar{J}}$ & & & & \\ \cdashline{2-4}
& $g A_{\mu}^{(\alpha_{3})}\lambda^{(\alpha_{1})} \Phi^{(-\alpha_{1})}_{\bar{J}}$ & \multirow{2}{*}{$-g \partial^{\mathcal{K}}A_{\mu} \star \lambda \star \Mj $} & \multirow{2}{*}{\eqref{eq: deltaDmuMjtbt7}} & & \\
& $g A_{\mu}^{(\alpha_{3})}\lambda^{(\alpha_{2})} \Phi^{(-\alpha_{2})}_{\bar{J}}$ & & & & \\ \cline{1-5}
%%%%% Bloque 3
\multirow{3}{*}{-} & \multirow{2}{*}{$-g \alpha_{2m} \lambda^{(\alpha_{1})}A_{\mu}^{m(0)} \Phi^{(\alpha_{2})}_{\bar{J}}$} & $ig A_{\mu}^{\mathcal{K}} \star \partial_{\mathcal{K}}\lambda \star \Mj \, +$ & \multirow{2}{*}{\eqref{eq: deltaDmuMjtbt5}} & \multirow{3}{*}{$ig\lambda \star A_{\mu}^{\mathcal{K}} \star \partial_{\mathcal{K}}\Mj$} & \\
& & $ig A_{\mu}^{\mathcal{K}} \star \lambda \star \partial_{\mathcal{K}}\Mj \, +$ & & & \\ \cdashline{3-4}
&$g \alpha_{1m} \lambda^{(\alpha_{2})}A_{\mu}^{m(0)} \Phi^{(\alpha_{1})}_{\bar{J}}$ & $-ig \partial_{\mathcal{K}}\lambda \star A_{\mu}^{\mathcal{K}} \star \Mj$ & \eqref{eq: deltaDmuMjtbt2} & &\\ \cline{1-5}
%%%%% Bloque 4
\multirow{3}{*}{-} & \multirow{2}{*}{$g \alpha_{2m} \lambda^{(\alpha_{1})}A_{\mu}^{(\alpha_{2})} \Phi^{m(0)}_{\bar{J}}$} & $-ig A_{\mu}\star \Hekj \star \partial^{\mathcal{K}}\lambda \, +$ & \eqref{eq: deltaDmuMjtbt3} & \multirow{3}{*}{$-ig\lambda \star \partial^{\mathcal{K}} A_{\mu} \star \Hekj$} & \\ \cdashline{3-4}
& & $-ig \partial^{\mathcal{K}}\lambda \star A_{\mu} \star \Hekj \, +$ & \multirow{2}{*}{\eqref{eq: deltaDmuMjtbt6}} & & \\
& $-g \alpha_{1m} \lambda^{(\alpha_{2})}A_{\mu}^{(\alpha_{1})} \Phi^{m(0)}_{\bar{J}}$ & $-ig \lambda \star \partial^{\mathcal{K}}A_{\mu} \star \Hekj$ & & & \\ \hline
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% C2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%% Bloque 1
$i \Lambda_{1\mathcal{K}}\lambda^{\mathcal{K}(0)}\partial_{\mu} \Phi^{1}_{\bar{J}}$ & $i \alpha_{3m} \lambda^{m(0)} \partial_{\mu}\Phi^{(\alpha_{3})}_{\bar{J}} $ & $\lambda_{\mathcal{K}} \star \partial^{\mathcal{K}}\partial_{\mu} \Mj $ & \eqref{eq: deltaDmuMjtbt1} & $\lambda_{\mathcal{K}} \star \partial^{\mathcal{K}}\partial_{\mu} \Mj $ & \multirow{6}{*}{\eqref{eq: deltaDmuMjac2}} \\ \cline{1-5}
%%%%% When I add this part, table breaks down.
%%%%% Bloque 2
\multirow{2}{*}{-} & $-g \alpha_{3m} \lambda^{m(0)}A_{\mu}^{(\alpha_{1})} \Phi^{(\alpha_{2})}_{\bar{J}}$ & $ig \lambda^{\mathcal{K}} \star \partial_{\mathcal{K}}A_{\mu} \star \Mj$ & \eqref{eq: deltaDmuMjtbt2} & $ig \lambda_{\mathcal{K}} \star \partial^{\mathcal{K}}A_{\mu} \star \Mj \, + $ & \\ \cdashline{3-4}
& $g \alpha_{3m} \lambda^{m(0)}A_{\mu}^{(\alpha_{2})} \Phi^{(\alpha_{1})}_{\bar{J}}$ & $ig A_{\mu} \star \lambda_{\mathcal{K}} \star \partial^{\mathcal{K}} \Mj$ & \eqref{eq: deltaDmuMjtbt3} & $ig \lambda_{\mathcal{K}} \star A_{\mu} \star \partial^{\mathcal{K}}\Mj $ & \\ \cline{1-5}
%%%%% Bloque 3
$-g \Lambda_{1\mathcal{K}}\lambda^{\mathcal{K}(0)} \Lambda_{1m}A_{\mu}^{m(0)} \Phi^{1}_{\bar{J}}$ & $-g \alpha_{3m} \lambda^{m(0)}\alpha_{3\mathcal{K}}A_{\mu}^{\mathcal{K}(0)} \Phi^{(\alpha_{3})}_{\bar{J}}$ & $g A_{\mu}^{\mathcal{K}} \star \lambda_{\mathcal{P}} \star \partial_{\mathcal{K}} \partial^{\mathcal{P}}\Mj$ & \eqref{eq: deltaDmuMjtbt5} & $g \lambda_{\mathcal{K}} \star A_{\mu}^{\mathcal{P}} \star \partial^{\mathcal{K}} \partial_{\mathcal{P}}\Mj$ & \\ \cline{1-5}
%%%%% Bloque 4
$-\sqrt{2} g \Lambda_{1\mathcal{K}}\lambda^{\mathcal{K}(0)} A_{\mu}^{(\alpha_{3})} \Phi^{4}_{\bar{J}}$ & \multirow{2}{*}{$g \alpha_{3m} \lambda^{m(0)}\alpha_{3\mathcal{K}}A_{\mu}^{(\alpha_{3})} \Phi^{\mathcal{K}(0)}_{\bar{J}}$} & $-g \lambda^{\mathcal{P}} \star \partial^{\mathcal{K}} \partial_{\mathcal{P}}A_{\mu} \star \Hekj \, +$ & \eqref{eq: deltaDmuMjtbt6} & $-g \lambda_{\mathcal{K}} \star \partial^{\mathcal{K}} \partial_{\mathcal{P}}A_{\mu} \star \left(H_{\mathcal{P}\bar{J}} - \eta_{\mathcal{P}\bar{J}}\right) \, + $ & \\ \cdashline{3-4}
$-\sqrt{2} g \Lambda_{1\mathcal{K}}\lambda^{\mathcal{K}(0)} A_{\mu}^{(\alpha_{1})} \Phi^{2}_{\bar{J}}$ & & $-g \partial^{\mathcal{K}} A_{\mu} \star \lambda^{\mathcal{P}} \star \partial_{\mathcal{P}}\Hekj $ & \eqref{eq: deltaDmuMjtbt7} & $-g\lambda_{\mathcal{K}} \star \partial_{\mathcal{P}}A_{\mu} \star \partial^{\mathcal{K}}\left(H_{\mathcal{P}\bar{J}} - \eta_{\mathcal{P}\bar{J}} \right) $ & \\ \hline
\hline
\end{longtable}
\end{center}
\end{landscape}
\end{document}
There are some references which will make no sense but that is unimportant. The horrendous result is:
Any clues as to why vertical lines go on to behave like this?
Thank you
\textwidthand\textheightin your document? Alternatively, could you tell us how wide the margins are?a4paper, for a\paperheight(not\textheight) equal to 297mm. Yet you also report\textheight=975.2pt, or 342.75mm. What's going on?\textheightis about 45mm larger than\paperheight. That's seriously problematic.