Is OMGF (Pro) compatible with Divi?

To make Divi (and themes based on Divi, like Extra) work with OMGF or OMGF Pro make sure Divi > Theme/Plugin Options > General > General > Use Google Fonts is enabled. OMGF (Pro) replaces Google Fonts on-the-fly. Which means it needs to know where Google Fonts are located in order to replace them.

Divi’s big update introduced many changes; how it handles Google Fonts is one of them. You’ll have to disable the improve Google Fonts loading setting under Divi > Theme/Plugin Options > Performance to make sure OMGF (Pro) is able to detect the fonts.

The Extra theme also offers the same features as Divi, the options to disable are located under Extra > General > Performance.

Some pages are missing fonts?

Divi loads its Google Fonts the same way on every page, so OMGF (Pro) uses the fonts of the first page it optimizes everywhere. Do some pages use extra fonts, e.g. only on your homepage or contact page? Then enable Divi Compatibility in OMGF’s Advanced Settings, so each page gets exactly the fonts it needs.

Also using a caching or optimization plugin that can host Google Fonts locally? Then disable that option and let OMGF (Pro) take care of it, see e.g. Is OMGF (Pro) compatible with WP Rocket?