Thanks, I’m glad it’s useful!
Please don’t use the HiveTheme library with third-party themes because it’s a framework meant to manage the whole theme, it’s not required for the HivePress plugin to function. It’s just a helper framework that we developed for ourselves (to develop themes faster), but I guess the Divi theme has its own structure and functions.
There may be minor styling issues with third-party themes and the styles may be pretty basic, but given a few CSS tweaks, it’s possible to integrate HivePress with any theme. Please check this tutorial Integrate your theme with HivePress - Developer Docs