The site you are referring to with the Headers changed is not mine. That was referenced as another site where I noticed the same issue.
Mine is at https://thmcec.org.au/club-business-directory/
I’m on 2.0.2 version of form. Had only just purchased it. Same version is the current download.
The visual editor isn;t showing in either the Notes or Bio fields. Text button works in Notes but the button is totally unresponsive in the Bio field.
If I can’t get this to work will have to resort to using Contact Form 7 which would make it more difficult since I’d need to do the old copy and paste.