After updating to 33.1.12 all of my locally installed (non-system) fonts are missing. I'm also using FontBase as my font manager but that's never been a problem. All of the fonts appear in Photoshop and Illustrator so this is a XD problem.
Please check your fonts in cc app manager. If some of them aren't active install them. Also you can try to instan/reinstall.
If that do not help, sing out/sign in into your Adobe account via cc app manger.
Also you can try to recover your cc app through unistall/repair mode when you go to uninstall process.
Another solution can reinstalling Adobe xd.