On 15 Oct 2024, at 07:47, Bernd Donner via ntg-context
wrote: Could someone please confirm if the output of the minimal example matches what is shown in the attached PDF?
I too get the output as posted. (mtx-context | current version: 2024.09.25 11:53) If you change the following MWE line \connection [bt] {compiler} to \connection [br] {compiler} then the glitch goes away, so I suggest that means it is a bug in the flow chart module. Changing to draw from the bottom shape upwards also has the glitch on a straight line - so something to do with the straight line drawing code, perhaps? As a work-around, if you just want the section heading underlined (as opposed to a more complicated MP graphic that you omitted for simplicity) then your MWE becomes: \usemodule[chart] \starttext \subsection[title={\inframed[frame=off,bottomframe=on]{Introduction}}] \startFLOWchart[toolchain] \startFLOWcell \location{1,1} \connection [bt] {compiler} \stopFLOWcell \startFLOWcell \name {compiler} \location{1,2} \shape{product} \stopFLOWcell \stopFLOWchart \FLOWchart[toolchain] \stoptext If you don’t want the section number then use \subsubject instead of \subsection. Regards, — Bruce Horrocks Hampshire, UK