is the ReCaptcha v3 invisible in Chronoforms 8? The plugin in Joomla 5 "recaptcha_invisible" is disabled.
How can I check whether an invisible ReCaptcha is working?
in right bottom on the Frontend there is a ReCaptcha Logo from Google.
I assume that ReCaptcha is also integrated
if you add a ReCaptcha view to the form and set it to v3 then it will look like the one you have in the image, regardless of the Joomla reCaptcha
