The shell command"/lrn-mdl-prod/build/71384/filter/tex/mimetex.linux" -e "/lrn-mdl-prod/moodledata/filter/tex/420e3dbbab9a6d6ef03f44ce2bb5959e.gif" -- '\Large \{\mathbf{M}_i\}'returned status = 1 Image not found!Please try the debugging script