I have backed up my settings via the THeme Options Manager as suggested, prior to loading demo content. When I loaded the demo, all fonts everywhere switched to Serif and Italicized (menus, body, header, and WordPress controls from front end).
I reloaded my saved settings but it did not fix it.
I have since gone through my Google Fonts and loaded them back to what they were previous, however Menus and some Headers are not changing to my chosen font settings. This is very strange as I have also loaded up past backups of my site content but this issue is remaining.
There was another posting on here that was a similar problem with no proper solution. I attempted their patchwork CSS and it still didn’t solve.
Please log into my site to see if you can fix or instruct me on a suggested solution. Thank you