Digitally Sign fonts messed up
When some people at my work attempt to sign documents in adobe acrobat reader DC their names is unreadable. I think I have tracked down the problem to a font but I'm not sure how to fix it.

It seems the problem computers do not embed the font into the PDF when signing but the working computers do. No matter how much I search I have not had any luck finding out how to fix this. I have even reinstalled a few times.

Has anyone seen this before?
Thank you
