The images I inspected was affected when I updated your page the first time. I updated the URLs yesterday then did updates to your content and they are not changing anymore. Those images under the “Advanced Features” are affected too just like the images I inspected. You need to update them yourself. I only showed you that it is working now (not reverting to the IP address when you update the page). Please look at the screencast again. I also did another one now.
This is not an issue with Cornerstone. This has to do with your WordPress and/or your server setup. We have nothing more to investigate. If this happens again, please consult with a web developer on how to fix your setup.
Thank you for understanding.