The site I am working on doesn’t have the parallax option to edit the background image. I have gone through all of your suggestions from another thread I found. So far I have done the following with no fix.
Deleted Cornerstone and reinstalled it.
Updated the PHP on the server to above 512mb.
Removed all plugins to see if there was a conflict.
Removed CSS/JS scripts.
Even after trying all of this, I still do not see the toggle for parallax in any of the image sections (see screenshot) any help is much appreciated.