font size issue with a generated translation

Dear Studio 2015 users,

I ran into a font size issue where the target file generated from the "Generate target translations" batch task has some text in a larger font than the other text in a paragraph.  I looked at the sdlxliff file in full tag mode, but did not see any suspicious tags. 

What could be the reason for this? The source file uses Myriad Pro, a font which I never heard of, but the font size is pretty consistent in the source file.

Thank you so much for any ideas or solutions you have. 

Chunyi