Hello there, I recently upgraded to ConTeXt ver: 2018.04.04 00:51 MKIV and found that the following simple code gives an error, where as it compiled without complaining in ver: 2017.05.15 21:48. \setupexternalfigures[location={local,default}] \starttext \input ward \placefigure[left,none]{}{\externalfigure[cow][width=3cm]} \input ward \stoptext The error happens when the location of placefigure is left or right, but not with center. The error is the following: context test.tex resolvers | trees | analyzing 'home:.texlive2018/texmf-config' mtx-context | run 1: luatex --fmt="/home/philippe/.texlive2018/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/formats/lua tex/cont-en" --jobname="test" --lua="/home/philippe/.texlive2018/texmf-var/luatex-cache/context/b47c3d3cee7cb6c86268d0595268c442/formats/luate x/cont-en.lui" --no-parse-first-line --c:currentrun=1 --c:fulljobname="./test.tex" --c:input="./test.tex" --c:kindofrun=1 --c:maxnofruns=9 "co nt-yes.mkiv" This is LuaTeX, Version 1.07.0 (TeX Live 2019/dev/Debian) system commands enabled. resolvers > trees > analyzing 'home:.texlive2018/texmf-config' open source > level 1, order 1, name '/usr/share/texmf/tex/context/base/mkiv/cont-yes.mkiv' system > system > ConTeXt ver: 2018.04.04 00:51 MKIV beta fmt: 2019.9.25 int: english/english system > system > 'cont-new.mkiv' loaded open source > level 2, order 2, name '/usr/share/texmf/tex/context/base/mkiv/cont-new.mkiv' close source > level 2, order 2, name '/usr/share/texmf/tex/context/base/mkiv/cont-new.mkiv' system > files > jobname 'test', input './test', result 'test' fonts > latin modern fonts are not preloaded languages > language 'en' is active open source > level 2, order 3, name '/home/philippe/test.tex' fonts > preloading latin modern fonts (second stage) fonts > 'fallback modern-designsize rm 12pt' is loaded open source > level 3, order 4, name '/usr/share/texmf/tex/context/sample/common/ward.tex' close source > level 3, order 4, name '/usr/share/texmf/tex/context/sample/common/ward.tex' floatblocks > '1' placed (left) tex error > tex error on line 6 in file /home/philippe/test.tex: ! Illegal unit of measure (pt inserted) <to be read again> \global \strc_floats_wrap_free_region ->\global \setbox \floatbox \hpack {\ifconditi... \strc_floats_mark_as_free ...ats_wrap_free_region \anch_mark_tagged_box_free... \strc_floats_mark_par_as_free ...sides_bottomskip \or \strc_floats_mark_as_f... \page_sides_push_float_inline ...mark_par_as_free \ifcase \c_page_sides_floa... \page_sides_place_float ...des_place_float_normal \fi \par \kern -\d_page_si... ... l.6 ...left,none]{}{\externalfigure[cow][width=3cm]} 1 \setupexternalfigures[location={local,default}] 2 3 \starttext 4 \input ward 5 6 >> \placefigure[left,none]{}{\externalfigure[cow][width=3cm]} 7 8 \input ward I am running a freshly installed Ubuntu 19.04. Has anybody run into this issues, is there a known workaround ? thanks in advance, Philippe