Something else I just noted, if you have Adobe Creative installed and cancel your subscription, it will screw up several of your fonts. Even many that come with your Mac like Helvetica.
I had to uninstall Creative suite and then restore the default fonts on my mac for webpages and emails using Helvetica to display correctly again.
I had to uninstall Creative suite and then restore the default fonts on my mac for webpages and emails using Helvetica to display correctly again.