I minimized my example to the following. To have the image displayed in the html file (filename-div.html in the filename-export directory), you need to put hacker.jpg into filename-export/images). The problem appears also without the image present, the formula is covered by an image that shouldn’t be there. Notice too that the overline is present in the pdf, but not in the html. \usemodule[mathml] \setupexternalfigures[location=default] \setupbackend[export=yes,xhtml=yes] \setupexport [svgstyle=mathtest-style, hyphen=yes, width=60em] \starttext \subject{Introduction} \startparagraph \input knuth \stopparagraph \placefigure [force] [figure:configurations] {Some simple Image} {\externalfigure[hacker.jpg] [width=\textwidth]} \startparagraph Let $p$ and $q$ be two different points. The \emph{segment} $\overline{pq}$ connecting $p$ and $q$ is the set \startformula pq = \{(1-t) p + t q: t\in[0,1]\}\ . \stopformula \stopparagraph \stoptext Any help will be appreciated! Thanks, Matthias