Just started using Kami; intermittant problems with saving annotations to google drive

Some of my students are losing their kami annotations when saving to google drive. My tech dept says it has to do with the font recognition. He said to try to save the kami annotations in a common font like Calibri or arial. However, how do I change font in Kami? Does it even let me?

Also, tech for Kami- have you created a fix for the annotation problem or not?