I have this same issue of a google font changing on published site. I tested in private browser and still same issue… could I get some help? I’m still on the free version for now but am deciding if this will work before paying…
I was having the same issue and contacted support. They told me the issue was that my text styles were not updated. This link shows you how to update your text styles: [Dropbox - Updating Text Styles basic example.mov - Simplify your life]
And you must click republish in Project Settings after making those changes for the changes to apply.