I’ve just added SSL on my site and a questionnaire I have running isn’t formatting correctly on the HTTPS. This is being driven by Contact Form 7 plugin. It still works fine on the HTTP site.

Edit: I’ve tried using the Really Simple SSL & SSL Insecure Content Fixer plugins with no lucky

Weirdly, it is working correctly when I am logged into my WordPress Admin account and I access the HTTPS version.

It doesn’t seem to be a mixed content issue.

Working version (HTTP & when logged into WP):

Broken Version (HTTPS version):