After we migrated our site from a dev site to production, our image links revert back to the dev URL each time a page is edited in x pro. It isnt ALL images, though. I have no idea what is causing this issue but it is very annoying to have to run a link changer each time we edit the page.
Update
It looks like a lot of people are having this issue after they migrate their sites. I dont see a fix for it anywhere so I am really hoping you have one. I did do a search and replace in the database and that did not work.