For the record, I've disabled Cloudflare. It'll take a bit for the DNS records to propagate. I had someone else message me on Facebook about an SSL error they're receiving when trying to visit the site. I think Cloudflare may be having intermittent issues. Go figure.
Do me a favor. On most pages, you should see a lock icon in the address bar. Click on it, and tell me what it says about the certificate. Specifically, does it refer to Cloudflare or not.
This sounds like the first thing I'd try. But he said it's happened on multiple devices. I'm not sure what could cause it other than the browser rendering the WYSIWYG box incorrectly. Maybe try another browser for shits and giggles and see if it still happens?