Hi there.
I built my site in a subfolder before going live and then moved everything up one level. Now many of my images are not being displayed. You can see the site at www.lexingtonpools.com. I went into the TEXT version of a page and saw that I had to change the URL path of the images, but this is reverted back if I later use Cornerstone to make other edits.
I do not see in Cornerstone where I can reassign the URL pathways to these images.
What a nightmare. 
Thanks for your help! I have accessed all of your migration articles and see that there was probably a better way to migrate, but what’s done is done now - and I’ve got a mess.