Not working with ACF Form

I’ve been using CleanTalk for a while and it usually works fantastically.

I’m developing a new site where I’m using an ACF Form for frontend input and CleanTalk doesn’t seem to be working. This is the info on the ACF form I am using: https://www.advancedcustomfields.com/resources/acf_form/

I am under the assumption that CleanTalk will check for bogus emails being inputted to an email field, but after numerous tests, this is still going through. I’ve done this while logged in as admin, but have also tested the site in a private browser window while not logged in.

Is anything know already with regard to using an ACF Form? I have searched the forum but have found no earlier reference and can find nothing on the cleantalk website.

Thanks
PS. I’d generally be happy to post a link to the form page, but only in private support communication (not here on a public forum).