The shell command
"/lrn-mdl-prod/build/71384/filter/tex/mimetex.linux" -e "/lrn-mdl-prod/moodledata/filter/tex/2cccda45c2464ea1dfaf201c5dda0fcb.gif" -- '\Large \mathbf{F}_2=\frac{1}{\sqrt{2}}(\mathbf{E}_1-\mathbf{E}_2)'
returned status = 1
Image not found!
Please try the debugging script