Need help diagnosing why your specific JPGs aren't showing up? Run your page URL through Google Search Console’s “URL Inspection” tool and look for the “Coverage” and “Enhancements” tabs – specifically the “Image” enhancements section. That is your roadmap to rescue.
The directory wasn’t full of images. There was only one file: final_render.jpg .
Use the tag or srcset attribute in your HTML to serve scaled-down versions of images to mobile users while preserving high-resolution copies for desktop users.