Invisible Hero Image

I'm pretty new to Divi and Wordpress as a whole so please be gentle. I'm optimising a few web pages but one of them has a really high LCP despite me disabling lazy load, adding fetchpriority=high and preloading the image, I manage to figure out the image I added these attributes too is not the image giving me the LCP issue. I'm on Divi Version 4.27.6 so I unfortunately can't just add these attributes in the module like I would be able to in Version 5 I had to add it in a child theme.

The issue is I need all the different image sizes used on the page for my code to work, but I can't find this image as in it's not visible on the page, it's not in Visual Builder, I can't inspect it with Dev tools, I've converted all images to .webp but this image is a .jpeg running a Network recording of the site doesn't even bring it up.

Wanted to see if anyone here can tell me exactly where I'm supposed to look for this image or if there is some toggle I'm missing. for further context the LCP element is just listed at img.wp-image-2026 if that helps.

Any help is appreciated