It sounds like something is being cached in some way, possibly by something in jetpack.
I don’t know what “850 entries” refers to in your last post.
When I asked how do the values in ACF get to your content, for most applications it requires modification to template files to display ACF field content. If you do not use calls to ACF functions and edit code then there is something else that is reading the values of the fields and adding them to your content.
