I'm working on a project and can't change the font of a symbol. I've assigned Helvetica to the symbol but when the project runs, it reverts to Times. The symbol is at the top left of the following project: http://haywardtest.businesscatalyst.com/TriStar_Full_Rated_09/TriStar%20-%20Full%20Rated.h tml
I took a quick peek at your project, and it looks like the font is not set on the my_description element. Select the element from the elements panel and check the properties panel to make sure it's set.