simonmnd

As the site is live, it’s not possible to deactivate all plugins and run the default WordPress theme.

Weirdly the plugin works fine on our staging environment.

I’m going to try rolling back to a previous version and see if that makes any difference.

It was set as ‘No’ when I posted the question, but I was doing some further testing yesterday and currently have it set as ‘Yes’. It doesn’t appear to have made any difference.

I received your test submission in the backend, Angelo, but I am assuming you didn’t get any thank you message when you pressed submit?