Problem with French site after creating Variation

I had a problem with a French variation that I created from an English publishing site. The site looked like it was missing some CSS files. After some investigation it was found that some theme files in the "_catalogs/theme/Themed/94CF7155/" folder were missing and returning 404 to the browser. After trying to reapply the theme, that did not work. I reset the theme to something else, then reset it back to our default. That resolved the issue.