Having the same problem. Thanks for posting! Going to downgrade my site now. What I saw is that the header/menu options stopped working. The individual themes disregard their header “menu” configurations.. which results in every page of the site being printed to screen. What a mess.
I am not changing themes or testing any other plugins. This project is complete. We are not using the plugin – because it did not work when we needed it to. I just want a refund. If you don’t issue one already I will followup with my credit card company and not you.