The shell command
"/lrn-mdl-prod/build/75217/filter/tex/mimetex.linux" -e "/lrn-mdl-prod/moodledata/filter/tex/7e03afd98fda97ce9ac180315a0ab653.gif" -- '\Large \text{tr}(\rho^2)'
returned status = 1
Image not found!
Please try the debugging script