php 5.5, latest wp version, latest bd version, all latest version as of posting this comment. I enabled reCATPCHA and it won’t displace on the submit page. Users click on submit on the submission form, and webpage displace error says ‘The reCAPTCHA wasn’t entered correctly.’ because they can’t see the reCATCHA that been displace. I’ve already enable ‘reCAPTCHA for listing submits’ in the backend. I’m using latest reCAPTCHA version 2.
Please test this, this should be an easy catch when you enable it and test it.