I have also had this issue for the past 3 weeks on multiple sites. All of the sites are running the latest WP and Contact Form 7. I have even dropped in twenty twenty theme to confirm it isn’t the theme… Private keys are v3… In chrome the following error comes up in the console:
Uncaught ReferenceError: grecaptcha is not defined at (index):619
I have done a bit of looking around forums etc and they are all saying this issue has been occuring since about the 19/11/2019 which was roughly since the last update was released..
When a user tries to submit a form on any site with this issue they get the following message:
There was an error trying to send your message. Please try again later.
which as we know is the default response message. Either way a fix for this would be great.