Dear all, In the following sample file, an error occurs in \startformula\startalign ... \stopalign\stopformula. The similar error occurs if I use \startformula\startmathcases. but \startmatrix works well. Did I do something wrong? Thank you for reading. Best regards, Dalyoung %%%%%%%%%%%%%% \starttext \starttable[|c|c|w4cm|w4cm|] \HL \NC A \VL B \VL C \VL D \NC\SR \HL \NC $x$ \VL \startmatrix \NC x' = \NC \NR \NC y' = \NC \NR \stopmatrix \VL \VL \NC\FR \HL \NC $y$ \VL \startformula\startalign \NC x' = \NC \NR \NC y' = \NC \NR \stopalign\stopformula \VL \VL \NC\LR \HL \stoptable \stoptext %%%%%%%%%%%% Log file mtx-context | run 1: luatex --fmt="/Users/graph/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/cont-en" --jobname="test1" --lua="/Users/graph/ConTeXt/tex/texmf-cache/luatex-cache/context/5fe67e0bfe781ce0dde776fb1556f32e/formats/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:input="./test1.tex" --c:kindofrun=1 "cont-yes.mkiv" This is LuaTeX, Version beta-0.70.2-2012052309 (TeX Live 2012) ... ... fonts > fallback modern rm 12pt is loaded ! Missing } inserted. system > tex > error on line 16 in file test1.tex: Missing ... 6 \starttable[|c|c|w4cm|w4cm|] 7 \HL 8 \NC A \VL B \VL C \VL D \NC\SR 9 \HL 10 \NC $x$ \VL \startmatrix 11 \NC x' = \NC \NR 12 \NC y' = \NC \NR 13 \stopmatrix \VL \VL \NC\FR 14 \HL 15 \NC $y$ \VL \startformula\startalign 16 >> \NC x' = \NC \NR 17 \NC y' = \NC \NR 18 \stopalign\stopformula \VL \VL \NC\LR 19 \HL 20 \stoptable <inserted text> } <to be read again> \halign \math_both_eqalign_no_aligned ...fi \fi #1\halign \ifcase \eqalignmode \or t... <to be read again> \NC l.16 \NC x' = \NC \NR ? x mkiv lua stats > used config file