bbPress.org

in this link

Formatting of User Profile and Search Results pages

I suggested this as a solution

dashboard>Divi >Theme options>Builder >Advanced > Static CSS File Generation > Clear.
then
dashboard>divi>Theme Options>Performance> Dynamic CSS option and disable

THEN critically you need to clear and server side caching, AND clear your browser cache.

Server side will depend on your host, and/or any caching plugins you have installed.
Browser – see this helpful article

How To Clear Cache for All Major Browsers

then it all worked fine