Here below are codes for two latex tables (generated by pandoc with a lua filter). The first table renders perfectly. The second nested table throws an error. Can you help diagnose the problem? THE LUA FILTER: function RawBlock (raw) if raw.format:match 'html' then return pandoc.read(raw.text, 'html').blocks end end THE ERROR MESSAGE: Runaway argument? \global \advance \c@LT@chunks \@ne \global \LT@rows \z@ \setbox \z@ \vbox \ETC. ! Forbidden control sequence found while scanning use of \LT@nofcols. \par l.176 \begin{longtable}[]{@{}rrr@{}} TABLE 1: \begin{longtable}[]{@{}rrr@{}} \caption{This is a Caption}\tabularnewline \toprule a & b & c \\ \midrule \endfirsthead \toprule a & b & c \\ \midrule \endhead 1 & 10 & 100 \\ 2 & 20 & 200 \\ 3 & 30 & 300 \\ \bottomrule \end{longtable} TABLE 2 (a table of 2 tables): \begin{longtable}[]{@{} >{\raggedright\arraybackslash}p{(\columnwidth - 2\tabcolsep) * \real{0.5000}} >{\raggedright\arraybackslash}p{(\columnwidth - 2\tabcolsep) * \real{0.5000}}@{}} \toprule \endhead \begin{minipage}[t]{\linewidth}\raggedright \begin{longtable}[]{@{}rrr@{}} \caption{\textbf{This is a Caption}}\tabularnewline \toprule a & b & c \\ \midrule \endfirsthead \toprule a & b & c \\ \midrule \endhead 1 & 10 & 100 \\ 2 & 20 & 200 \\ 3 & 30 & 300 \\ \bottomrule \end{longtable} \end{minipage} & \begin{minipage}[t]{\linewidth}\raggedright \begin{longtable}[]{@{}rrr@{}} \caption{\textbf{This is Another Caption}}\tabularnewline \toprule a & b & c \\ \midrule \endfirsthead \toprule a & b & c \\ \midrule \endhead 2 & 20 & 200 \\ 4 & 40 & 400 \\ 6 & 60 & 600 \\ \bottomrule \end{longtable} \end{minipage} \\ \bottomrule \end{longtable} -- You received this message because you are subscribed to the Google Groups "pandoc-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To view this discussion on the web visit https://groups.google.com/d/msgid/pandoc-discuss/6bde11a6-701b-4ceb-8664-0f7348bd4b4fn%40googlegroups.com.