GP Logged Out User Cache Issue

Hi folks,

I’m at my wits end trying to troubleshoot this one.

I created a homepage hero where the client asked for rotating background photos. My initial solution was using some CSS and a PHP script to do so. It worked for me while I was logged in, but I soon found out that it wasn’t working for any logged out users.

Thinking it was my CSS or PHP that I messed up, I decided to go the route of creating a custom post type via ACF called ‘Home Hero Images’ and then using a Query Loop to bring in the data as a random post.

I have 6 posts under there, all with the same h1, h2, paragraph, link, etc. The only difference is the image that is used for the background.

I created the hero section and once again the posts rotate correctly while I’m logged in, however, they do not when I’m in an incognito window or logged out.

Troubleshooting I’ve tried:
-Coding vs creating a query loop/custom post
-Clearing cache via browser
-Clearing cache via plugins (Redis, Nginx, Autooptimize, ShortPixel)
-Clearing cache via hosting (Gridpane)
-Disabling all caching plugins
-Disabling every plugin (excluding GP)

None of the above has worked.

The odd thing is that any time I edit a page via the editor, even if it’s just clicking the ‘Update’ button, the post/background image will change for a logged out user. But then it won’t load another one via refresh unless I hit ‘Update’ again.

So I’ve run out of ideas.

Any help?